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Results for "Sohae Chung"

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Identifying Mild Traumatic Brain Injury Patients From MR Images Using Bag of Visual WordsOct 18 2017Feb 14 2018Mild traumatic brain injury (mTBI) is a growing public health problem with an estimated incidence of one million people annually in US. Neurocognitive tests are used to both assess the patient condition and to monitor the patient progress. This work aims ... More
MTBI Identification From Diffusion MR Images Using Bag of Adversarial Visual FeaturesJun 27 2018In this work, we propose bag of adversarial features (BAF) for identifying mild traumatic brain injury (MTBI) patients from their diffusion magnetic resonance images (MRI) (obtained within one month of injury) by incorporating unsupervised feature learning ... More
A Deep Unsupervised Learning Approach Toward MTBI Identification Using Diffusion MRIFeb 08 2018Apr 11 2018Mild traumatic brain injury is a growing public health problem with an estimated incidence of over 1.7 million people annually in US. Diagnosis is based on clinical history and symptoms, and accurate, concrete measures of injury are lacking. This work ... More
A Deep Unsupervised Learning Approach Toward MTBI Identification Using Diffusion MRIFeb 08 2018Mild traumatic brain injury (mTBI) is a growing public health problem with an estimated incidence of one million people annually in US. Neurocognitive tests have been used to both assess the patient condition and to monitor the patient progress. This ... More
Nonequilibrium finite-frequency noise of a resonance-level quantum dot close to a dissipative quantum phase transition: Functional Renormalization Group approachesOct 25 2010Nov 15 2012We calculate the finite-frequency current noise of a nonequilibrium resonance-level quantum dot close to a dissipative quantum phase transition of the Kosterlitz-Thouless (KT) type between a de-localized phase for weak dissipation and a localized phase ... More
Dynamical properties of a nonequilibrium quantum dot close to localized-delocalized quantum phase transitionsAug 23 2010We calculate the dynamical decoherence rate and susceptibility of a nonequilibrium quantum dot close to the delocalized-to-localized quantum phase transitions. The setup concerns a resonance-level coupled to two spinless fermionic baths with a finite ... More
An Efficient Approach for Computing Optimal Low-Rank Regularized Inverse MatricesApr 06 2014Standard regularization methods that are used to compute solutions to ill-posed inverse problems require knowledge of the forward model. In many real-life applications, the forward model is not known, but training data is readily available. In this paper, ... More
Optimal regularized inverse matrices for inverse problemsMar 18 2016In this paper, we consider optimal low-rank regularized inverse matrix approximations and their applications to inverse problems. We give an explicit solution to a generalized rank-constrained regularized inverse approximation problem, where the key novelties ... More
A desingularization of Kontsevich's compactification of twisted cubics in $V_5$Feb 05 2019By definition, the del Pezzo $3$-fold $V_5$ is the intersection of $\mathrm{Gr}(2,5)$ with three hyperplanes in $\mathbb{P}^9$ under the Pl\"ucker embedding. Rational curves in $V_5$ have been studied in various contents of Fano geometry. In this paper, ... More
Search for Neutron-Antineutron Oscillations Using Multiprong Events in Soudan 2May 28 2002We have searched for neutron-antineutron oscillations using the 5.56 fiducial kiloton-year exposure of the Soudan 2 iron tracking calorimeter. We require candidate n-nbar occurrences to have .GE. 4 prongs (tracks and showers) and to have kinematics compatible ... More
A Retrieval Framework and Implementation for Electronic Documents with Similar LayoutsOct 16 2018As the number of digital documents requiring investigation increases, it has become more important to identify relevant documents to a given case. There have been continual demands for finding relevant files in order to overcome this kind of issues. Regarding ... More
Measures for a Multidimensional MultiverseNov 19 2012Nov 16 2014We explore the phenomenological implications of generalizing measures to a multidimensional multiverse. We consider a simple model in which the vacua are nucleated from a $D$-dimensional parent spacetime through dynamical compactification of the extra ... More
Quantum criticality in Kondo quantum dot coupled to helical edge states of interacting 2D topological insulatorsJan 26 2012Apr 01 2012We investigate theoretically the quantum phase transition (QPT) between the one-channel Kondo (1CK) and two-channel Kondo (2CK) fixed points in a quantum dot coupled to helical edge states of interacting 2D topological insulators (2DTI) with Luttinger ... More
The Design of the NetBSD I/O SubsystemsMay 19 2016This book describes the source code of the NetBSD Operating System Release 1.6 in SUN UltraSPARC 64-bit platform by annotating related excerpts from references and user manuals on the NetBSD Operating System. The goal of this book is to provide necessary ... More
Distributed Denial of Service is a Scalability ProblemApr 01 2011Apr 13 2011Distributed denial of service attacks are often considered a security problem. While this may be the way to view the problem with today's Internet, new network architectures attempting to address the issue should view it as a scalability problem. In addition, ... More
Precisely Analyzing Loss in Interface Adapter ChainsNov 30 2010Interface adaptation allows code written for one interface to be used with a software component with another interface. When multiple adapters are chained together to make certain adaptations possible, we need a way to analyze how well the adaptation ... More
Sharp estimates for the commutators of the Hilbert, Riesz transforms and the Beurling-Ahlfors operator on weighted Lebesgue spacesJan 05 2010We prove that the operator norm on weighted Lebesgue space L2(w) of the commutators of the Hilbert, Riesz and Beurling transforms with a BMO function b depends quadratically on the A2-characteristic of the weight, as opposed to the linear dependence known ... More
Weighted inequalities for multivariable dyadic paraproducsJan 09 2010Nov 22 2010Using Wilson's Haar basis in $\R^n$, which is different than the usual tensor product Haar functions, we define its associated dyadic paraproduct in $\R^n$. We can then extend "trivially" Beznosova's Bellman function proof of the linear bound in $L^2(w)$ ... More
Three-dimensional kaon and pion emission source extraction from \sqrt{s_{NN}} = 200 GeV Au+Au collisions at RHIC-STARDec 27 2010Dec 30 2010Three-dimensional source images for mid-rapidity, low transverse momentum kaon and pion pairs have been extracted from central Au+Au collisions data at \sqrt{s_{NN}} = 200 GeV by the STAR experiment at RHIC. The pion source function displays significant ... More
Hawking Radiation and Entropy from Horizon Degrees of FreedomNov 02 2010May 29 2012We study the thermodynamic properties of horizons using the dynamical description of the gravitational degrees of freedom at a horizon found in a previous work. We use the action of the horizon degrees of freedom to posit an ansatz Liouville action in ... More
Success Exponent of Wiretapper: A Tradeoff between Secrecy and ReliabilityMay 23 2008May 31 2008Equivocation rate has been widely used as an information-theoretic measure of security after Shannon[10]. It simplifies problems by removing the effect of atypical behavior from the system. In [9], however, Merhav and Arikan considered the alternative ... More
Search for PQ AxionsDec 08 2018Dec 11 2018A major fraction of the mass content of the universe is composed of dark matter (DM), i.e. particles not interacting significantly with electromagnetic radiation, with ordinary matter or self-interacting (cold dark matter). The axion is originally proposed ... More
Evidence for a long range structure in the pion emission source in Au+Au collisions at RHICOct 11 2005The PHENIX experiment, has recently acquired $\sim$ 1 billion minimum bias Au+Au events at $\sqrt s = 200$GeV during the year-2004 run. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the extraction of 3D ... More
The Search for Higgs Bosons of Minimal Supersymmetry at the LHCFeb 18 1998The prospects for discovering neutral Higgs bosons in the minimal supersymmetric model (MSSM) and in the minimal supergravity model at the LHC are investigated. Two special discovery channels are discussed: (i) the decay mode of the MSSM CP-odd Higgs ... More
From Quasirandom graphs to Graph Limits and GraphletsMar 10 2012Nov 05 2013We generalize the notion of quasirandom which concerns a class of equivalent properties that random graphs satisfy. We show that the convergence of a graph sequence under the spectral distance is equivalent to the convergence using the (normalized) cut ... More
Instability of Near-Extremal Black Holes in N=2, d=4 SupergravityDec 20 2011Oct 25 2012As a precursor to studying the bound states of multiple non-extremal black holes in $\mathcal{N}=2$, $d=4$ supergravity, we investigate the stability of a near-extremal D0-D4 black hole in the probe limit, when the parameters of the black hole solution ... More
The Effective Fluid Approach to Cosmological Nonlinearities: Applications to PreheatingSep 07 2010In [arXiv:1004.2488], Baumann et al. present a new formalism for studying cosmological systems where the characteristic scale of non-linearities is much smaller than the Hubble scale. By integrating out the short-wavelength modes, it is possible to obtain ... More
Asymptotic Symmetries of Rindler Space at the Horizon and Null InfinityMay 05 2010Jun 21 2010We investigate the asymptotic symmetries of Rindler space at null infinity and at the event horizon using both systematic and ad hoc methods. We find that the approaches that yield infinite-dimensional asymptotic symmetry algebras in the case of anti-de ... More
Convergence and Divergence of Approximations in terms of the Derivatives of Heat KernelSep 08 2014We consider an approximate solution to the heat equation which consists of the derivatives of heat kernel. Some conditions in the initial value, under which the approximation converges to the solution of the heat equation or diverges when the number of ... More
Modeling network technology deployment rates with different network modelsApr 05 2011To understand the factors that encourage the deployment of a new networking technology, we must be able to model how such technology gets deployed. We investigate how network structure influences deployment with a simple deployment model and different ... More
Efficient Batch Update of Unique Identifiers in a Distributed Hash Table for Resources in a Mobile HostJun 05 2007Jun 21 2010Resources in a distributed system can be identified using identifiers based on random numbers. When using a distributed hash table to resolve such identifiers to network locations, the straightforward approach is to store the network location directly ... More
Higgs Decays into LeptonsSep 30 2002We discuss the prospects for the discovery of neutral Higgs bosons ($\phi^0 = H^0, h^0, A^0$) in multi-Higgs doublet models via their decays into leptons at hadron colliders. A major focus will be searching for Higgs bosons produced with bottom quarks ... More
Kondo effect in coupled quantum dots with RKKY interaction: Finite temperature and magnetic field effectsJul 28 2006We study transport through two quantum dots coupled by an RKKY interaction as a function of temperature and magnetic field. By applying the Numerical Renormalization Group (NRG) method we obtain the transmission and the linear conductance. At zero temperature ... More
Numerical study on diverging probability density function of flat-top solitons in an extended Korteweg-de Vries equationAug 15 2009We consider an extended Korteweg-de Vries (eKdV) equation, the usual Korteweg-de Vries equation with inclusion of an additional cubic nonlinearity. We investigate the statistical behaviour of flat-top solitary waves described by an eKdV equation in the ... More
Virtual Poincaré polynomial of the space of stable pairs supported on quintic curvesSep 17 2014May 31 2015Let $\mathbf{M}^{\alpha}(d,\chi)$ be the moduli space of $\alpha$-stable pairs $(s,F)$ on the projective plane $\mathbb{P}^2$ with Hilbert polynomial $\chi(F(m))=dm+\chi$. For sufficiently large $\alpha$ (denoted by $\infty$), it is well known that the ... More
On Tightness of Mutual Dependence Upperbound for Secret-key Capacity of Multiple TerminalsMay 21 2008Jun 16 2008Csiszar and Narayan[3] defined the notion of secret key capacity for multiple terminals, characterized it as a linear program with Slepian-Wolf constraints of the related source coding problem of communication for omniscience, and upper bounded it by ... More
Production of CP-Odd Higgs Bosons with Large Transverse Momentum at Hadron SupercollidersOct 01 1993Apr 05 1994A two Higgs doublet model is employed to study the production of a CP-odd Higgs boson ($A$) associated with a large transverse momentum jet ($j$) at hadron supercolliders. The cross section of $pp \to jA+X$ is evaluated with four subprocesses: $gg \to ... More
Parity Violation in Top Quark Pair Production at the Fermilab Tevatron ColliderNov 18 1994The leading weak corrections to the production of top quark pairs via $q\bar{q} \to t\bar{t}$ in $p\bar{p}$ collisions are evaluated. The chromo-anapole form factor of the top quark and effects of parity violation are studied in the Standard Model (SM) ... More
Diffusion-Driven Instability of a fourth order systemJul 03 2018We analyze diffusion-driven (Turing) instability of a reaction-diffusion system. The innovation is that we replace the traditional Laplacian diffusion operator with a combination of the fourth order bi-Laplacian operator and the second order Laplacian. ... More
Sharp estimates for the commutator of the Hilbert transform on weighted Lebesgue spacesApr 21 2009Nov 22 2010This paper has been withdrawn by the author due to some error in the result
Tunneling between single and multi-centered black hole configurationsJan 14 2012Aug 20 2012We find a gravitational instanton that connects an initial state corresponding to a single-centered extremal Reissner-Nordstrom (ERN) black hole configuration, to a final state corresponding to a multi-centered configuration. This instanton is interpreted ... More
Fragmentation of black hole scaling throats in N=2 supergravityDec 20 2011We find an instanton analogous to the Brill instanton that describes the fragmentation of a single-centered black hole scaling throat of charge $\Gamma_1 + \Gamma_2 + \Gamma_3$ in N=2 supergravity to three disconnected throats of charges $\Gamma_1, \Gamma_2, ... More
Reduction of a Class of Three-Loop Vacuum Diagrams to Tetrahedron TopologiesJan 16 2001Jan 19 2001We obtain finite parts (as well as $\epsilon$-pole parts) of massive three-loop vacuum diagrams with three-point and/or four-point interaction vertices by reducing them to tetrahedron diagrams with both massive and massless lines, whose finite parts were ... More
Can the vertical motions in the eyewall of tropical cyclones support persistent UAV flight?Aug 15 2014Powered flights in the form of manned or unmanned aerial vehicles (UAVs) have been flying into tropical cyclones to obtain vital atmospheric measurements with flight duration typically lasting between 12 and 36 hours. Convective vertical motion properties ... More
Quantum criticality of the two-channel pseudogap Anderson model: Universal scaling in linear and non-linear conductanceJan 18 2015The quantum criticality of the two-lead two-channel pseudogap Anderson model is studied. Based on the non-crossing approximation, we calculate both the linear and nonlinear conductance of the model at finite temperatures with a voltage bias and a power-law ... More
Nonequilibrium occupation number and charge susceptibility of a resonance level close to a dissipative quantum phase transitionFeb 22 2010Based on the recent paper (Phys. Rev. Lett. 102, 216803, (2009)), we study the nonequilibrium occupation number and charge susceptibility of a resonance level close to a dissipative quantum phase transition of the Kosterlitz-Thouless (KT) type between ... More
Induced Lorentz- and CPT-violating Chern-Simons term in QED: Fock-Schwinger proper time methodJan 16 2001Using the Fock-Schwinger proper time method, we calculate the induced Chern-Simons term arising from the Lorentz- and CPT-violating sector of quantum electrodynamics with a $b_\mu \bar{\psi}\gamma^\mu \gamma_5 \psi$ term. Our result to all orders in $b$ ... More
Three-Loop Effective Potential of O(N) $φ^4$ TheoryJul 26 1998Nov 23 1998The three-loop effective potential of the massless O(N) $\phi^4$ theory is calculated analytically using techniques of dimensional regularization. We see a complete agreement between our result and Jackiw's result obtained only up to two-loop order using ... More
Renormalization conditions and the effective potential of the massless phi^4 theoryApr 10 1998We point out that there is a missing portion in the two-loop effective potential of the massless O(N) phi^4 theory obtained by Jackiw in his classic paper, Phys. Rev. D 9, 1686 (1974).
Renormalization group improvement of the effective potential in massive $φ^4$ theoryMay 12 1999Using the method of renormalization group, we improve the two-loop effective potential of the massive $\phi^4$ theory to obtain the next-next-to-leading logarithm correction in the $\bar{MS}$ scheme. Our result well reproduces the next-next-to-leading ... More
Kondo effect in a side-coupled double-quantum-dot system embedded in a mesoscopic ringAug 05 2009Sep 04 2009We study the finite size effect of the Kondo screening cloud in a double-quantum-dot setup via a large-N slave-boson mean-field theory. In this setup, one of the dots is embedded in a close metallic ring with a finite size $L$ and the other dot is side-coupled ... More
Two-stage Kondo effect in side-coupled quantum dots: Renormalized perturbative scaling theory and Numerical Renormalization Group analysisJul 24 2007We study numerically and analytically the dynamical (AC) conductance through a two-dot system, where only one of the dots is coupled to the leads but it is also side-coupled to the other dot through an antiferromagnetic exchange (RKKY) interaction. In ... More
RG-Improved Three-Loop Effective Potential of the Massive $φ^4$ theoryNov 24 1999Feb 01 2002The renormalization group method is applied to the three-loop effective potential of the massive $\phi^4$ theory in the $\bar{\rm MS}$ scheme in order to obtain the next-next-next-to-leading logarithm resummation. For this, we exploit four-loop parts ... More
Endoscopic classification of representations of quasi-split unitary groupsJun 05 2012Jun 22 2013In this paper we establish the endoscopic classification of tempered representations of quasi-split unitary groups over local fields, and the endoscopic classification of the discrete automorphic spectrum of quasi-split unitary groups over global number ... More
Distributed Algorithms for Finding Local Clusters Using Heat Kernel PagerankJul 31 2015Sep 27 2015A distributed algorithm performs local computations on pieces of input and communicates the results through given communication links. When processing a massive graph in a distributed algorithm, local outputs must be configured as a solution to a graph ... More
Web of Lossy Adapters for Interface Interoperability: An Algorithm and NP-completeness of MinimizationJul 21 2009By using different interface adapters for different methods, it is possible to construct a maximally covering web of interface adapters which incurs minimum loss during interface adaptation. We introduce a polynomial-time algorithm that can achieve this. ... More
Using RDMA for Lock ManagementJul 12 2015Jul 20 2015In this work, we aim to evaluate different Distributed Lock Management service designs with Remote Direct Memory Access (RDMA). In specific, we implement and evaluate the centralized and the RDMA-enabled lock manager designs for fast network settings. ... More
Monte Carlo simulations of pulse propagation in massive multichannel optical fiber communication systemsNov 07 2007We study the combined effect of delayed Raman response and bit pattern randomness on pulse propagation in massive multichannel optical fiber communication systems. The propagation is described by a perturbed stochastic nonlinear Schr\"odinger equation, ... More
Impersonation with the Echo ProtocolJun 15 2005The Echo protocol tries to do secure location verification using physical limits imposed by the speeds of light and sound. While the protocol is able to guarantee that a certain object is within a certain region, it cannot ensure the authenticity of further ... More
The Periodic Table of Elementary Particles and the Composition of HadronsNov 15 2001Oct 20 2004All leptons, quarks, and gauge bosons can be placed in the periodic table of elementary particles. As the periodic table of elements derived from atomic orbital, the periodic table of elementary particles is derived from the two sets of seven orbitals: ... More
The vacuum interpretation of quantum mechanics and the vacuum universeOct 27 2001Quantum mechanics is interpreted by the adjacent vacuum that behaves as a virtual particle to be absorbed and emitted by its matter. As described in the vacuum universe model, the adjacent vacuum is derived from the pre-inflationary universe in which ... More
Genesis CosmologySep 04 2001Feb 09 2011Genesis Cosmology is the combination of Genesis and a cosmology model for the description of the first three days in Genesis. The first day involves the emergence of the separation of light and darkness from the formless, empty, and dark pre-universe ... More
Probabilistic Analysis of Loss in Interface Adapter ChainingApr 18 2011Interface adapters allow applications written for one interface to be reused with another interface without having to rewrite application code, and chaining interface adapters can significantly reduce the development effort required to create the adapters. ... More
Computing Heat Kernel Pagerank and a Local Clustering AlgorithmMar 11 2015May 17 2016Heat kernel pagerank is a variation of Personalized PageRank given in an exponential formulation. In this work, we present a sublinear time algorithm for approximating the heat kernel pagerank of a graph. The algorithm works by simulating random walks ... More
On the representation of the position operator and Lie-Hamilton equation in the discrete momentum spaceDec 28 2012In this paper the representation of the position operator and the Lie-Hamilton equation in the discrete momentum space.
Some Realization of $gl_q(n)$-covariant Oscillator Algebra and $gl_q(n)$-covariant q-Virasoro Algebra with $q$ a root of unityOct 01 1996In this paper some realization of $gl_q(n)$-covariant oscillators is obtained when $q$ is a root of unity. And the $gl_q(n)$-covariant q-Virasoro algebra is presented by using the $gl_q(n)$-covariant oscillators.
$gl_q(n)$-covariant Oscillators and q-Deformed Quantum Mechanics in n DimensionsSep 17 1996In this paper the coherent state for $gl_q(n)$-covariant oscillators is constructed and is shown to satisfy the completeness relation. And the q-analogue of quantum mechanics in n dimensions is obtained by using $gl_q(n)$ oscillators.
On Witten-type deformation of osp(1/2) AlgebraSep 17 1996In this paper Witten type deformation of osp(1/2) algbera is introduced and its realization and matrix representation are obtained. The matrix representation is shown to be possible only when the dimension is odd.
Diffractive Production at Collider - I: Soft Diffraction and Dino's ParadoxJun 06 1997One of the more interesting developments from recent collider experiments is the finding that hadronic total cross sections as well as elastic cross s ections can be described by the exchange of a "soft Pomeron" pole in the near-forward limit. The most ... More
Discrete-Time Poles and Dynamics of Discontinuous Mode Boost and Buck Converters Under Various Control SchemesNov 19 2012Nonlinear systems, such as switching DC-DC boost or buck converters, have rich dynamics. A simple one-dimensional discrete-time model is used to analyze the boost or buck converter in discontinuous conduction mode. Seven different control schemes (open-loop ... More
Stellar Kinematics of Boxy Bulges: Large-Scale Bars and Inner DisksMar 10 2004Major-axis long-slit stellar kinematics was obtained for 30 edge-on spiral galaxies, 24 with a boxy/peanut-shaped (B/PS) bulge. B/PS bulges are present in >45% of highly inclined systems and much work suggests that they are the edge-on projection of thick ... More
Phase disorder on laser beam combining in a Talbot resonatorJun 08 2011We study the role that phase disorder plays in the mode discrimination characteristics of a Talbot resonator. Two cases considered here correspond to a six-core and a twelve-core photonic crystal fiber.
Reconstructing the WIMP Velocity Distribution from Direct Dark Matter Detection Data with a Non-Negligible Threshold EnergyMar 17 2015Aug 07 2015In this paper, we investigate the modification of our expressions developed for the model-independent data analysis procedure of the reconstruction of the (time-averaged) one-dimensional velocity distribution of Galactic Weakly Interacting Massive Particles ... More
Analyzing direct dark matter detection data with unrejected background events by the AMIDAS websiteNov 28 2011In this talk I have presented the data analysis results of extracting properties of halo WIMPs: the mass and the (ratios between the) spin-independent and spin-dependent couplings/cross sections on nucleons by the AMIDAS website by taking into account ... More
Bayesian Reconstruction of the Velocity Distribution of Weakly Interacting Massive Particles from Direct Dark Matter Detection DataMar 22 2014Aug 04 2014In this paper, we extended our earlier work on the reconstruction of the (time-averaged) one-dimensional velocity distribution of Galactic Weakly Interacting Massive Particles (WIMPs) and introduce the Bayesian fitting procedure to the theoretically predicted ... More
Effects of Residue Background Events in Direct Detection Experiments on Identifying WIMP Dark MatterDec 13 2010We reexamine the model-independent data analysis methods for extracting properties of Weakly Interacting Massive Particles (WIMPs) by using data (measured recoil energies) from direct Dark Matter detection experiments directly and, as a more realistic ... More
A continuation semantics of interrogatives that accounts for Baker's ambiguityJul 18 2002Jul 25 2003Wh-phrases in English can appear both raised and in-situ. However, only in-situ wh-phrases can take semantic scope beyond the immediately enclosing clause. I present a denotational semantics of interrogatives that naturally accounts for these two properties. ... More
Half-Chain Entanglement Entropy in the One-Dimensional Spinless Fermion ModelOct 17 2016We calculate the half-chain entanglement entropy of the ground state in the one-dimensional spinless fermion model. Considering a tiny corner of the Hilbert space represented by matrix product states, we efficiently find the ground state by the infinite ... More
Simultaneous Source for non-uniform data variance and missing dataApr 21 2014The use of simultaneous sources in geophysical inverse problems has revolutionized the ability to deal with large scale data sets that are obtained from multiple source experiments. However, the technique breaks when the data has non-uniform standard ... More
Physics0.01 : Object-Oriented Programming for Exact DiagonalizationFeb 26 2003A new system of library code is proposed and initiated. It is emphasized that the same terminologies as we find in our textbooks should be used for class names in the library code. The language C# invented by Microsoft is adopted in this project. Several ... More
Bs ->mu+ mu- versus Direct Higgs SearchesOct 31 2006We investigate the prospects for the discovery of neutral Higgs bosons with muons by direct searches at the CERN Large Hadron Collider (LHC) as well as by indirect searches in the rare decay Bs -> mu+ mu- at the Fermilab Tevatron and the LHC. Promising ... More
Parity Violating Asymmetries in Top Pair Production at Hadron CollidersJan 30 1999Nov 01 1999We study loop-induced parity violating asymmetries in the strong production of polarized top quark pairs at $pp$ and $p \bar p$ colliders. The electroweak ${\cal O}(\alpha)$ corrections to the helicity amplitudes of $q \bar q \to t \bar t$ and $gg \to ... More
Relic Density of Neutralino Dark Matter in Supergravity ModelsApr 24 1997Nov 29 1997We calculate the relic density ($\Omega_{\chi^0_1} h^2$) of neutralino dark matter in supergravity models with radiative electroweak symmetry breaking, for values of the Higgs sector parameter $\tan\beta \equiv v_2/v_1$ between the two infrared fixed ... More
Generalizing the Coleman-Hill TheoremJun 14 1995Jul 17 1995Following the work of Khare {\it et al}, we show that the generalization to systems with spontaneous symmetry breaking of the Coleman-Hill theorem to one-loop order, can be extended to the case including fermions with the most general interactions. Although ... More
The Non-abelian Chern-Simons Coefficient in the Higgs PhaseOct 29 1997We calculate the one loop corrections to the Chern-Simons coefficient $\kappa$ in the Higgs phase of Yang-Mills Chern-Simons Higgs theories. When the gauge group is SU(N), we show, by taking into account the effect of the would be Chern-Simons term, that ... More
Structural Aspects of the Proton in the Chiral Quark ModelOct 06 1995Oct 07 1995We calculate with chiral symmetry the parton contents of the proton based on a two-component wave function. The calculation results give significant sea-quark contents and, especially, the intrinsic gluon polarization produced at a more fundamental level. ... More
Cohomology bounds for sheaves of dimension oneFeb 15 2013May 05 2013We find the sharp bounds on $h^0(F)$ for one-dimensional semistable sheaves $F$ on a projective variety $X$ by using the spectrum of semistable sheaves. The result generalizes the Clifford theorem. When $X$ is the projective plane $\mathbb{P}^2$, we study ... More
Decomposition of random graphs into complete bipartite graphsFeb 04 2014Nov 26 2015We consider the problem of partitioning the edge set of a graph $G$ into the minimum number $\tau(G)$ of edge-disjoint complete bipartite subgraphs. We show that for a random graph $G$ in $G(n,p)$, for $p$ is a constant no greater than $1/2$, almost surely ... More
Prediction of the anomalous magnetic moment of nucleon from the nucleon anomalyApr 24 1995We construct the effective anomaly lagrangian involving nucleons and photons by using current-current coupling method. The contribution of this lagrangian to the anomalous magnetic moment of nucleon is purely isovector. The anomalous magnetic moment of ... More
Nonlinear Cosmological Structure FormationOct 01 1998I present a general discussion of the evolution and model-dependence of both the linear and nonlinear power spectrum of density fluctuations. The features of the linear power spectrum in cosmological models with cold dark matter (CDM) and cold+hot dark ... More
Optimal Experimental Design for Constrained Inverse ProblemsAug 16 2017In this paper, we address the challenging problem of optimal experimental design (OED) of constrained inverse problems. We consider two OED formulations that allow reducing the experimental costs by minimizing the number of measurements. The first formulation ... More
Tunable Fano-Kondo resonance in side-coupled double quantum dot systemApr 28 2010We study the interference between the Fano and Kondo effects in a side-coupled double-quantum- dot system where one of the quantum dots couples to conduction electron bath while the other dot only side-couples to the first dot via antiferromagnetic (AF) ... More
A weak form of beyond endoscopic decomposition for the stable trace formula of odd orthogonal groupsAug 11 2016Aug 17 2016We show that the cuspidal component of the stable trace formula of a special odd orthogonal group over a number field, satisfies a weak form of beyond endoscopic decomposition. We also study the $r$-stable trace formula, when $r$ is the standard or the ... More
The $L^2$ Volume of the Space of Holomorphic Maps from Kähler Riemann Surfaces to $\mathbb{CP}^k$Apr 04 2015May 14 2015We prove the conjectural formula for the $L^2$ volume of the space of degree $r$ holomorphic maps from a compact K\"ahler Riemann surface of genus $b$ to $\pk$. This formula was posed in \cite{Ba} and rigorously verified in \cite{Sp} for a special case ... More
Unstable Angina is a syndrome correlated to mixed Th17 and Th1 immune disorderNov 20 2013Unstable angina is common clinical manifestation of atherosclerosis. However, the detailed pathogenesis of unstable angina is still not known. Here, I propose that unstable angina is a mixed TH17 and TH1 immune disorder. By using microarray analysis, ... More
Sepsis is a syndrome with hyperactivity of TH17-like innate immunity and hypoactivity of adaptive immunityNov 19 2013Currently, there are two major theories for the pathogenesis of sepsis: hyperimmune and hypoimmune. Hyperimmune theory suggests that cytokine storm causes the symptoms of sepsis. On the contrary, hypoimmune theory suggests that immunosuppression causes ... More
Abelian Gauge Fluxes and Local Models in F-TheoryNov 03 2009Feb 28 2010We analyze the Abelian gauge fluxes in local F-theory models with G_S=SU(6) and SO(10). For the case of G_S=SO(10), there is a no-go theorem which states that for an exotic-free spectrum, there are no solutions for U(1)^2 gauge fluxes. We explicitly construct ... More
Birkhoff spectra for one-dimensional maps with some hyperbolicityMar 11 2008We study the multifractal analysis for smooth dynamical systems in dimension one. It is characterized the Hausdorff dimension of the level set obtained from the Birkhoff averages of a continuous function by the local dimensions of hyperbolic measures ... More
The cosmic origin of supersymmetry and internal symmetryJan 31 2001Feb 06 2001The cosmic vacuum is the wavefunction of the eleven dimensional Planck supermembrane. The Planck wavefunction is the superposition of dimensions from eleven to four dimensional spacetime with decreasing energy and increasing size. The cosmic vacuum is ... More
The masses of elementary particles and hadronsMar 23 2000Jul 28 2001The masses of elementary particles and hadrons can be calculated from the periodic table of elementary particles. The periodic table is derived from dimensional hierarchy for the seven extra spatial dimensions. As a molecule is the composite of atoms ... More