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Finite Energy Electroweak DyonOct 31 2002May 15 2003We present finite energy analytic monopole and dyon solutions whose size is fixed by the electroweak scale. We discuss two types of solutions. The first type is obtained by regularizing the recent solutions of Cho and Maison by modifying the coupling ... More

Global regular motions for compressible barotropic viscous fluids. StabilityAug 25 2015We consider viscous compressible barotropic motions in a bounded domain $\Omega \subset \mathbb{R}^3$ with the Dirichlet boundary conditions for velocity. We assume the existence of some special sufficiently regular solutions $v_s$ (velocity), $\varrho_s$ ... More

Living Inside the Horizon of the D3-BraneDec 22 2000Mar 31 2001We consider a brane world residing in the interior region inside the horizon of the D3-brane. The horizon size then can be interpreted as the compactification size. The macroscopically large size of extra dimensions can be derived from the underlying ... More

Checking the optimality of entanglement witnesses: an application to structural physical approximationsApr 07 2013May 26 2014In 2008, the conjecture that structural physical approximations to optimal entanglement witnesses are separable states (in general unnormalized) was posed. In an attempt to disprove it, in [K.-C. Ha and S.-H. Kye, Separable states with unique decompositions, ... More

On magnetic leaf-wise intersectionsNov 22 2011Feb 13 2014In this article we introduce the notion of a magnetic leaf-wise intersection point which is a generalization of the leaf-wise intersection point with magnetic effects. We also prove the existence of magnetic leaf-wise intersection points under certain ... More

Secret key distillation from shielded two-qubit statesMar 03 2008Sep 22 2010The quantum states corresponding to a secret key are characterized using the so-called private states, where the key part consisting of a secret key is shielded by the additional systems. Based on the construction, it was shown that a secret key can be ... More

Lower semi-continuity of the Waldschmidt constantsFeb 27 2018Oct 01 2018In this paper, we study the Waldschmidt constant of a generalized fat point subscheme $Z=m_1p_1+\cdots+m_rp_r$ of $\mathbb{P}^2$, where $p_1,\cdots,p_r$ are essentially distinct points on $\mathbb{P}^2$, satisfying the proximity inequalities. Furthermore, ... More

Stability Of contact discontinuity for steady Euler System in infinite ductMar 23 2011Mar 11 2012In this paper, we prove structural stability of contact discontinuities for full Euler system.

Discrimination of two-qubit unitaries via local operations and classical communicationJan 27 2016Distinguishability is a fundamental and operational task generally connected to information applications. In quantum information theory, from the postulates of quantum mechanics it often has an intrinsic limitation, which then dictates and also characterises ... More

Key distillation from Gaussian states by Gaussian operationsMay 11 2004May 20 2004We study the secrecy properties of Gaussian states under Gaussian operations. Although such operations are useless for quantum distillation, we prove that it is possible to distill a secret key secure against any attack from sufficiently entangled Gaussian ... More

Influence of the Core/Shell Interface on Biexciton Auger Recombination in Individual Nanocrystal Quantum DotsJul 16 2013Sep 20 2013Previous single-particle spectroscopic studies of colloidal quantum dots have indicated a significant spread in biexciton lifetimes across an ensemble of nominally identical nanocrystals. It has been speculated that in addition to dot-to-dot variation ... More

Analytical expressions for the deprojected Sersic modelSep 23 2010The Sersic model has become the standard to parametrize the surface brightness distribution of early-type galaxies and bulges of spiral galaxies. A major problem is that the deprojection of the Sersic surface brightness profile to a luminosity density ... More

Microwave Meissner Screening of Proximity coupled Topological Insulator / Superconductor BilayersApr 14 2019The proximity coupled topological insulator / superconductor (TI/SC) bilayer system is a promising platform to realize a Majorana bound state at its magnetic vortex core. In order to design a vortex Majorana system from the TI/SC bilayer, a comprehensive ... More

Transonic Shocks In Multidimensional Divergent NozzlesMar 23 2010Oct 26 2010We establish existence, uniqueness and stability of transonic shocks for steady compressible non-isentropic potential flow system in a multidimensional divergent nozzle with an arbitrary smooth cross-section, for a prescribed exit pressure. The proof ... More

On the Minimum-Area Rectangular and Square Annulus ProblemApr 15 2019In this paper, we address the minimum-area rectangular and square annulus problem, which asks a rectangular or square annulus of minimum area, either in a fixed orientation or over all orientations, that encloses a set $P$ of $n$ input points in the plane. ... More

Contact discontinuities for 3-D axisymmetric inviscid compressible flows in infinitely long cylindersJan 15 2019Apr 18 2019We prove the existence of a subsonic axisymmetric weak solution $({\bf u},\rho,p)$ with ${\bf u}=u_x{\bf e}_x+u_r{\bf e}_r+u_\theta{\bf e}_{\theta}$ to steady Euler system in a three-dimensional infinitely long cylinder $\mathcal{N}$ when prescribing ... More

Small amplitude limit of solitary waves for the Euler-Poisson systemMay 01 2018The one-dimensional Euler-Poisson system arises in the study of phenomena of plasma such as plasma solitons, plasma sheaths, and double layers. When the system is rescaled by the Gardner-Morikawa transformation, the rescaled system is known to be formally ... More

Superactivation, unlockability, and secrecy distribution of bound informationNov 09 2010Bound information, a cryptographic classical analogue of bound entanglement, is defined as classical secret correlations from which no secret key can be extracted. Its existence was conjectured and shown in a multipartite case. In this work, we provide ... More

Ion Trap Proposal for Quantum SearchApr 26 2002In this letter, we show that the laser Hamiltonian can perform the quantum search. We also show that the process of quantum search is a resonance between the initial state and the target state, which implies that Nature already has a quantum search system ... More

Generalized Quantum Search HamiltonianOct 03 2001Feb 03 2002There are hamiltonians that solve a search problem of finding one of $N$ items in $O(\sqrt{N})$ steps. They are hamiltonians to describe an oscillation between two states. In this paper we propose a generalized search hamiltonian, $H_{g}$. Then the known ... More

On estimates of transition density for subordinate Brownian motions with Gaussian components in $C^{1,1}$-open setsOct 16 2017We consider a subordinate Brownian motion $X$ with Gaussian components when the scaling order of purely discontinuous part is between $0$ and $2$ including $2$. In this paper we establish sharp two-sided bounds for transition density of $X$ in ${\mathbb ... More

Detecting Noisy Channels by Channel Discrimination : Local versus Entangled ResourcesDec 05 2018Dynamics of many-qubit systems, that may correspond to computational processing with quantum systems, can be efficiently and generally approximated by a sequence of two- and single-qubit gates. In practical applications, however, a quantum gate prepared ... More

How do T Tauri stars accreteOct 24 2017We conjecture that observed protoplanetary disc accretion rates may be explained with low viscosities which could be the result of hydrodynamic turbulence. We show that viscosities parameterized in the usual way with $\alpha \gtrsim 10^{-4}$, comparable ... More

Operational Characterization of Divisibility of Dynamical MapsJan 21 2016Aug 01 2016Divisibility of dynamical maps turns out to be a fundamental notion in characterising Markovianity of quantum evolution, although the decision problem for divisibility itself is computationally intractable. In this work, we propose the operational characterisation ... More

Key distillation from quantum channels using two-way communication protocolsOct 09 2006We provide a general formalism to characterize the cryptographic properties of quantum channels in the realistic scenario where the two honest parties employ prepare and measure protocols and the known two-way communication reconciliation techniques. ... More

Planet-driven spiral arms in protoplanetary disks: I. Formation mechanismNov 22 2017Dec 27 2017Protoplanetary disk simulations show that a single planet can excite more than one spiral arm, possibly explaining recent observations of multiple spiral arms in some systems. In this paper, we explain the mechanism by which a planet excites multiple ... More

3-D axisymmetric subsonic flows with nonzero swirl for the compressible Euler-Poisson systemApr 18 2016May 06 2016We address the structural stability of 3-D axisymmetric subsonic flows with nonzero swirl for the steady compressible Euler-Poisson system in a cylinder supplemented with non small boundary data. A special Helmholtz decomposition of the velocity field ... More

Boundedness of pseudo-differential operators of type (0,0) on Triebel-Lizorkin and Besov spacesSep 06 2018In this work we study the boundedness of pseudo-differential operators corresponding to $a\in\mathcal{S}_{0,0}^{m}$ on Triebel-Lizorkin spaces $F_p^{s,q}$ and Besov spaces $B_p^{s,q}$. We also discuss the sharpness of our estimates in a certain sense. ... More

Contact discontinuities for 2-D inviscid compressible flows in infinitely long nozzlesOct 10 2018Apr 18 2019We prove the existence of a subsonic weak solution $({\bf u}, \rho, p)$ to steady Euler system in a two-dimensional infinitely long nozzle when prescribing the value of the entropy $(= \frac{p}{\rho^{\gamma}})$ at the entrance by a piecewise $C^2$ function ... More

Analytical expressions for the deprojected Sérsic model - II. General expressions in terms of the Fox H functionAug 08 2011The S\'ersic model is the de facto standard to describe the surface brightness distribution of hot stellar systems. An important inconvenience of this analytical model is that the corresponding luminosity density and associated properties cannot be expressed ... More

Dynamical models with a general anisotropy profileMay 28 2007Both numerical simulations and observational evidence indicate that the outer regions of galaxies and dark matter haloes are typically mildly to significantly radially anisotropic. The inner regions can be significantly non-isotropic, depending on the ... More

Global existence for some transport equations with nonlocal velocityAug 12 2014Aug 14 2014In this paper, we study transport equations with nonlocal velocity fields with rough initial data. We address the global existence of weak solutions of an one dimensional model of the surface quasi-geostrophic equation and the incompressible porous media ... More

Closest-Pair Queries in Fat RectanglesSep 27 2018In the range closest pair problem, we want to construct a data structure storing a set $S$ of $n$ points in the plane, such that for any axes-parallel query rectangle $R$, the closest pair in the set $R \cap S$ can be reported. The currently best result ... More

Information-Theoretic Meaning of Quantum Information Flow and Its Applications to Quantum ComputationMay 14 2018Dec 05 2018The advantages of quantum information processing are in many cases obtained as consequences of quantum interactions, especially for computational tasks where two-qubit interactions are essential. In this work, we establish the framework of analyzing and ... More

A dark matter solution from the supersymmetric axion modelApr 02 1996We study the effect of the late decaying saxino (the scalar superpartner of the axion) and find out that there is a possible dark matter solution from a class of supersymmetric extensions of the invisible axion model. In this class of models, the saxino ... More

Hierarchical octree and k-d tree grids for 3D radiative transfer simulationsNov 04 2013A crucial ingredient for numerically solving the 3D radiative transfer problem is the choice of the grid that discretizes the transfer medium. Many modern radiative transfer codes, whether using Monte Carlo or ray tracing techniques, are equipped with ... More

Phase-space consistency of stellar dynamical models determined by separable augmented densitiesJan 31 2012Assuming the separable augmented density, it is always possible to construct a distribution function of a spherical population with any given density and anisotropy. We consider under what conditions the distribution constructed as such is in fact non-negative ... More

Striated Regularity for the Euler EquationsAug 08 2015Apr 27 2018In 1993, Chemin proved that vorticity possessing negative Holder regularity in directions given by a sufficient family of vector fields (striated regularity) maintains such regularity for all time when measured against the push-forward of those vector ... More

Quantum state discrimination and its applicationsJul 09 2017Jul 11 2017Quantum state discrimination underlies various applications in quantum information processing tasks. It essentially describes the distinguishability of quantum systems in different states, and the general process of extracting classical information from ... More

Dielectric Resonator Method For Determining Gap Symmetry Of Superconductors Through Anisotropic Nonlinear Meissner EffectJan 25 2019We present a new measurement method which can be used to image gap nodal structure of superconductors whose pairing symmetry is under debate. This technique utilizes a high quality factor microwave resonance involving the sample of interest. While supporting ... More

Quantitative Determination of the Pairing Interactions for High Temperature Superconductivity in CupratesJan 11 2016A profound problem in modern condensed matter physics is discovering and understanding the nature of the fluctuations and their coupling to fermions in cuprates which lead to high temperature superconductivity and the invariably associated strange metal ... More

Regularity of Solutions to Regular Shock Reflection for Potential FlowApr 15 2008The shock reflection problem is one of the most important problems in mathematical fluid dynamics, since this problem not only arises in many important physical situations but also is fundamental for the theory of multidimensional conservation laws. However, ... More

Subsonic solutions for steady Euler-Poisson system in two dimensional nozzlesSep 13 2013In this paper, we prove the existence and stability of subsonic flows for steady full Euler-Poisson system in a two dimensional nozzle of finite length when imposing the electric potential difference on non-insulated boundary from a fixed point at the ... More

Steric effects of CO2 binding to transition metal-benzene complexes: a first-principles studyJun 02 2016Using density functional theory (DFT) calculations, we investigated the adsorption of CO2 molecules on 3d transition metal (TM)-benzene complexes. Our calculations show that the maximum number of CO2 molecules adsorbable on Sc or Ti atoms is three, but ... More

Analyticity of the Subcritical and Critical Quasi-Geostrophic equations in Besov SpacesOct 06 2013We establish analyticity of the subcritical and critical quasi-geostrophic equations in critical Besov spaces. The main method is so-called Gevrey estimates, which is motivated by the work of Foias and Temam. We show that mild solutions \theta(t), are ... More

A Census of Gas Outflows in Type 2 Active Galactic NucleiSep 04 2014We perform a census of ionized gas outflows using a sample of ~23,000 type 2 active galactic nuclei (AGNs) out to z~0.1. By measuring the velocity offset of narrow emission lines, i.e., [O III] {\lambda}5007 and H{\alpha}, with respect to the systemic ... More

Prandtl-Meyer Reflection for Supersonic Flow past a Solid RampDec 31 2011We present our recent results on the Prandtl-Meyer reflection for supersonic potential flow past a solid ramp. When a steady supersonic flow passes a solid ramp, there are two possible configurations: the weak shock solution and the strong shock solution. ... More

Two dimensional subsonic flows with self-gravitation in bounded domainJun 17 2014We investigate two dimensional steady Euler-Poisson system which describe the motion of compressible self-gravitating flows. The unique existence and stability of subsonic flows in a duct of finite length are obtained when prescribing the entropy at the ... More

A one-parameter family of totally umbilical hyperspheres in the nearly Kaehler 6-sphereSep 01 2017We discuss two kinds of almost contact metric structures on a one-parameter family of totally umbilical hyperspheres in the nearly Kaehler unit 6-sphere.

3d $\mathcal{N}=2$ minimal SCFTs from Wrapped M5-branesOct 28 2016Nov 16 2016We study CFT data of 3-dimensional superconformal field theories (SCFTs) arising from wrapped two M5-branes on closed hyperbolic 3-manifolds. Via so-called 3d/3d correspondence, central charges of these SCFTs are related to a $SL(2)$ Chern-Simons (CS) ... More

On the Holography of Free Yang-MillsJul 26 2016Oct 13 2016We study the AdS$_5$/CFT$_4$ duality where the boundary CFT is free Yang-Mills theory with gauge group SU(N). At the planar level we use the spectrum and correlation functions of the boundary theory to explicate features of the bulk theory. Further, by ... More

One-loop Test of Free SU(N) Adjoint Model HolographyMar 17 2016Apr 19 2016We consider the holographic duality where the CFT side is given by $SU(N)$ adjoint free scalar field theory. Compared to the vector models, the set of single trace operators is immensely extended so that the corresponding AdS theory also contains infinitely ... More

No-signaling Quantum Key Distribution: Solution by Linear ProgrammingFeb 17 2012Jan 15 2013We outline a straightforward approach for obtaining a secret key rate using only no-signaling constraints and linear programming. Assuming an individual attack, we consider all possible joint probabilities. Initially, we study only the case where Eve ... More

Some functional equations originating from number theoryOct 18 2003We will introduce new functional equations (\ref{eq:hana}) and (\ref{eq:hana2}) which are strongly related to well-known formulae (\ref{eq:young}) and (\ref{eq:young2}) of number theory, and investigate the solutions of the equations. Moreover, we will ... More

Exploring Free Matrix CFT Holographies at One-LoopAug 15 2017We extend our recent study on the duality between stringy higher spin theories and free CFTs in the $SU(N)$ adjoint representation to other matrix models namely the free $SO(N)$ and $Sp(N)$ adjoint models as well as the free $U(N)\times U(M)$ bi-fundamental ... More

Planetary Signatures in the SAO 206462 (HD 135344B) Disk: A Spiral Arm Passing Through Vortex?Jan 19 2016Feb 22 2016The disk surrounding SAO 206462, an 8 Myr-old Herbig Ae star, has recently been reported to exhibit spiral arms, an asymmetric dust continuum, and a dust-depleted inner cavity. By carrying out two-dimensional, two-fluid hydrodynamic calculations, we find ... More

Antenna Operator Product Expansion of ABJ(M) Lightlike Polygon Wilson LoopDec 30 2014Expectation value of lightlike polygon Wilson loop is computed in the three-dimensional ABJM theory up to second-order in `t Hooft coupling in the limit of infinitely many colors and the result is critically compared with that in the four-dimensional ... More

A wrapped Fukaya category of knot complementJan 08 2019Mar 13 2019This is the first of a series of two articles where we construct a version of wrapped Fukaya category $\mathcal W\mathcal F(M\setminus K;H_{g_0})$ of the cotangent bundle $T^*(M \setminus K)$ of the knot complement $M \setminus K$ of a compact 3-manifold ... More

AnomiGAN: Generative adversarial networks for anonymizing private medical dataJan 31 2019Typical personal medical data contains sensitive information about individuals. Storing or sharing the personal medical data is thus often risky. For example, a short DNA sequence can provide information that can not only identify an individual, but also ... More

Monster AnatomyNov 29 2018We investigate the two-dimensional conformal field theories (CFTs) of $c=\frac{116}{5}$ and $c=23$ `dual' to the three state Potts model and the tensor product of two Ising models, respectively. We argue that these CFTs exhibit moonshines for the triple ... More

Modular Constraints on Superconformal Field TheoriesNov 02 2018We constrain the spectrum of $\mathcal{N}=(1, 1)$ and $\mathcal{N}=(2, 2)$ superconformal field theories in two-dimensions by requiring the NS-NS sector partition function to be invariant under the $\Gamma_\theta$ congruence subgroup of the full modular ... More

Linking Entanglement Detection and State Tomography via Quantum 2-DesignsMar 07 2018We present an experimentally feasible and efficient method for detecting entangled states with measurements that extend naturally to a tomographically complete set. Our detection criterion is based on measurements from subsets of a quantum 2-design, e.g., ... More

Bootstrapping Pure Quantum Gravity in AdS3Oct 18 2016The three-dimensional pure quantum gravity with negative cosmological constant is supposed to be dual to the extremal conformal field theory of central charge $c=24k$ in two dimensions. We employ the conformal bootstrap method to analyze the extremal ... More

The GDOF of 3-user MIMO Gaussian interference channelJul 20 2012Aug 27 2012The paper establishes the optimal generalized degrees of freedom (GDOF) of 3-user $M \times N$ multiple-input multiple-output (MIMO) Gaussian interference channel (GIC) in which each transmitter has $M$ antennas and each receiver has $N$ antennas. A constraint ... More

Diverse protoplanetary disk morphology produced by a Jupiter-mass planetAug 28 2018Aug 30 2018Combining hydrodynamic planet-disk interaction simulations with dust evolution models, we show that protoplanetary disks having a giant planet can reveal diverse morphology in (sub-)millimeter continuum, including a full disk without significant radial ... More

Entanglement, detection, and geometry of non-classical StatesMar 04 2009Oct 11 2010Non-classical states that are characterized by their non-positive quasi-probabilities in phase space are known to be the basis for various quantum effects. In this work, we investigate the interrelation between the non-classicality and entanglement, and ... More

Periodic orbits in virtually contact structuresMay 05 2017Aug 29 2018We prove that certain non-exact magnetic Hamiltonian systems on products of closed hyperbolic surfaces and with a potential function of large oscillation admit non-constant contractible periodic solutions of energy below the Ma\~n\'e critical value. For ... More

An efficient coding algorithm for general Framed Pulse Width ModulationsMay 01 2019This paper introduces a new coding algorithm for Framed Pulse Width Modulation (FPWM). The proposed algorithm requires 93% fewer look-up tables (LUTs) than the previous FPWM coding algorithm and increases a bitrate by 25%. The proposed algorithm is compatible ... More

An evolving and mass dependent ${\rm σ_{\text{sSFR}}}$-${\rm M_{\star}}$ relation for galaxiesMay 06 2019The scatter (${\rm\sigma_{\text{sSFR}}}$) of the specific star formation rates (sSFRs) of galaxies is a measure of the diversity in their star formation histories (SFHs) at a given mass. In this paper we employ the EAGLE simulations to study the dependence ... More

LABOCA and MAMBO-2 imaging of the dust ring of the Sombrero galaxy (NGC 4594)May 30 2008The Sombrero galaxy (NGC 4594) is an Sa galaxy with a symmetric dust ring. We have used the Large APEX BOlometer CAmera (LABOCA) at 870 micron and the MAx-Planck Millimeter BOlometer (MAMBO-2) at 1.2 mm to detect the dust ring for the first time at submillimetre ... More

Mass models from high-resolution HI data of the dwarf galaxy NGC 1560Apr 20 2010We present HI observations performed at the GMRT of the nearby dwarf galaxy NGC 1560. This Sd galaxy is well-known for a distinct "wiggle" in its rotation curve. Our new observations have twice the resolution of the previously published HI data. We derived ... More

Electric-Magnetic Duality in QED Effective ActionNov 22 2000Recently we have obtained a non-perturbative but convergent series expression of the one loop effective action of QED, and discussed the renormalization of the effective action. In this paper we establish the electric-magnetic duality in the quantum effective ... More

Analytical shear and flexion of Einasto dark matter haloesJul 18 2012Aug 13 2012N-body simulations predict that dark matter haloes are described by specific density profiles on both galactic- and cluster-sized scales. Weak gravitational lensing through the measurements of their first and second order properties, shear and flexion, ... More

QCD versus Skyrme-Faddeev TheoryMay 17 2001Jul 18 2001We discuss the physical impacts of the ``Cho decomposition'' (or the ``Cho-Faddeev-Niemi-Shabanov decomposition'') of the non-Abelian gauge potential on QCD. We show how the decomposition makes a subtle but important modification on the non-Abelian dynamics, ... More

Multiple-Retrapping Process in High-$T_c$ Intrinsic Josephson JunctionsJul 24 2008We report measurements of switching-current distribution (SWCD) from a phase-diffusion branch to a quasiparticle-tunneling branch as a function of temperature in a cuprate-based intrinsic Josephson junction. Contrary to the thermal-activation model, the ... More

Preserving Measurements for Optimal State Discrimination over Quantum ChannelsNov 19 2018In this work, we consider optimal state discrimination for a quantum system that interacts with an environment, i.e., states evolve under a quantum channel. We show the conditions on a quantum channel and an ensemble of states such that a measurement ... More

A kinetic description for the herding behavior in financial marketMay 09 2019As a continuation of the study of the herding model proposed in (Bae et al. in arXiv:1712.01085, 2017), we consider in this paper the derivation of the kinetic version of the herding model, the existence of the measure-valued solution and the corresponding ... More

Studying the spectral properties of Active Galactic Nuclei in the JWST eraAug 06 2009The James Webb Space Telescope (JWST), due to launch in 2014, shall provide an unprecedented wealth of information in the near and mid-infrared wavelengths, thanks to its high-sensitivity instruments and its 6.5 m primary mirror, the largest ever launched ... More

ALMA observations of lensed Herschel sources : Testing the dark-matter halo paradigmJan 22 2018With the advent of wide-area submillimeter surveys, a large number of high-redshift gravitationally lensed dusty star-forming galaxies (DSFGs) has been revealed. Due to the simplicity of the selection criteria for candidate lensed sources in such surveys, ... More

Highly structured disk around the planet host PDS 70 revealed by high-angular resolution observations with ALMAFeb 20 2019Apr 17 2019PDS 70b is the most robustly detected young planet imaged in the gap of a transition disk so far, found at a separation of ~195 mas (~22 au) from its host star and at a position angle of about 155 deg. This system is therefore a unique laboratory to characterize ... More

Dust Production and Particle Acceleration in Supernova 1987A Revealed with ALMADec 14 2013Supernova (SN) explosions are crucial engines driving the evolution of galaxies by shock heating gas, increasing the metallicity, creating dust, and accelerating energetic particles. In 2012 we used the Atacama Large Millimeter/Submillimeter Array to ... More

Spitzer Imaging of Strongly-Lensed Herschel-Selected Dusty Star Forming GalaxiesApr 20 2015Apr 23 2015We present the rest-frame optical spectral energy distribution and stellar masses of six Herschel- selected gravitationally lensed dusty, star-forming galaxies (DSFGs) at 1 < z < 3. These galaxies were first identified with Herschel/SPIRE imaging data ... More

A Particle Model of Our Spacetime: Origin of GravityMay 18 2016May 30 2016We build a model of our spacetime by assuming new particles called "space quanta." In the ambient or bulk spacetime ${\cal S}^{D_{\rm amb}}$ ($D_{\rm amb} \ge 4$), a multitude of space quanta form a nearly three-dimensional object, whose continuum approximation ... More

Tautological relations for stable maps to a target varietyJan 10 2019Apr 30 2019We define tautological relations for the moduli space of stable maps to a target variety. Using the double ramification cycle formula for target varieties of Janda-Pandharipande-Pixton-Zvonkine, we construct nontrivial tautological relations parallel ... More

An overtwisted disk in a virtual contact structure and the Weinstein conjectureFeb 17 2014Hofer proved the Weinstein conjecture for a closed contact 3-manifold with an overtwisted disk. In this article we extend it to the virtual contact structure and provide a new explicit example of the virtual contact structure with an overtwisted disk ... More

Universal causality of energy-containing eddies in wall turbulenceFeb 23 2019May 07 2019Turbulent flows in the presence of bounding surfaces, such as those occurring in many geophysical and industrial applications, may be apprehended as a collection of whirls, or eddies, whose sizes differ by many orders of magnitude. These eddies follow ... More

DNA Steganalysis Using Deep Recurrent Neural NetworksApr 27 2017Oct 05 2018Recent advances in next-generation sequencing technologies have facilitated the use of deoxyribonucleic acid (DNA) as a novel covert channels in steganography. There are various methods that exist in other domains to detect hidden messages in conventional ... More

Coloring link diagrams by Alexander quandlesMay 18 2011In this paper, we study the colorability of link diagrams by the Alexander quandles. We show that if the reduced Alexander polynomial $\Delta_{L}(t)$ is vanishing, then $L$ admits a non-trivial coloring by any non-trivial Alexander quandle $Q$, and that ... More

PixelSteganalysis: Destroying Hidden Information with a Low Degree of Visual DegradationJan 30 2019Mar 02 2019Steganography is the science of unnoticeably concealing a secret message within a certain image, called a cover image. The cover image with the secret message is called a stego image. Steganography is commonly used for illegal purposes such as terrorist ... More

Outflow kinematics manifested by the H-alpha line: gas outflows in Type 2 AGNs. IVJul 18 2017Energetic ionized gas outflows driven by active galactic nuclei (AGN) have been studied as a key phenomenon related to AGN feedback. To probe the kinematics of the gas in the narrow line region, [O III] ${\lambda}$5007 has been utilized in a number of ... More

Tale of J1328+2752: a misaligned double-double radio galaxy hosted by a binary black-hole?Dec 19 2016We present a radio and optical study of the double-double radio galaxy J1328+2752 based on new low-frequency GMRT observations and SDSS data. The radio data were used to investigate the morphology and to perform a spectral index analysis. In this source ... More

e^+ e^- --> {tilde t}_1 {tilde t}_1^* (H_1) in the MSSM with explicit CP violationsMar 31 2000Aug 01 2000The author considers the effects of the CP-violating phases, e. g. arg(A_t) and arg(mu) on the e^+ e^- --> {tilde t}_1 {tilde t}_1^* (H_1) processes. The third generation squark trilinear terms give significant contributions to the Higgs potential at ... More

Tautological relations for stable maps to a target varietyJan 10 2019We define tautological relations for the moduli space of stable maps to a target variety. Using the double ramification cycle formula for target varieties of Janda-Pandharipande-Pixton-Zvonkine, we construct nontrivial tautological relations parallel ... More

Accretion Outbursts in Self-gravitating Protoplanetary DisksSep 13 2014We improve on our previous treatments of long-term evolution of protostellar disks by explicitly solving disk self-gravity in two dimensions. The current model is an extension of the one-dimensional layered accretion disk model of Bae et al. We find that ... More

Variable Accretion Outbursts in Protostellar EvolutionDec 28 2012We extend the one-dimensional, two-zone models of long-term protostellar disk evolution with infall of Zhu et al. to consider the potential effects of a finite viscosity in regions where the ionization is too low for the magnetorotational instability ... More

Incremental Learning with Maximum Entropy Regularization: Rethinking Forgetting and IntransigenceFeb 03 2019Incremental learning suffers from two challenging problems; forgetting of old knowledge and intransigence on learning new knowledge. Prediction by the model incrementally learned with a subset of the dataset are thus uncertain and the uncertainty accumulates ... More

Heat kernel estimates for symmetric jump processes with mixed polynomial growthsApr 18 2018In this paper, we study the transition densities of pure-jump symmetric Markov processes in $ {{\mathbb R}}^d$, whose jumping kernels are comparable to radially symmetric functions with mixed polynomial growths. Under some mild assumptions on their scale ... More

Review on rationality problems of algebraic k-toriDec 12 2018Rationality problems of algebraic k-tori are closely related to rationality problems of the invariant field, also known as Noether's Problem. We describe how a function field of algebraic k-tori can be identified as an invariant field under a group action ... More

Exact potential-density pairs for flattened dark haloesOct 30 2008Cosmological simulations suggest that dark matter haloes are not spherical, but typically moderately to strongly triaxial systems. We investigate methods to convert spherical potential-density pairs into axisymmetric ones, in which the basic characteristics ... More

Black hole mass measurements using ionized gas discs: systematic dust effectsSep 08 2008Using detailed Monte Carlo radiative transfer simulations in realistic models for galactic nuclei, we investigate the influence of interstellar dust in ionized gas discs on the rotation curves and the resulting black hole mass measurements. We find that ... More