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Phonon-mediated quantum state transfer and remote qubit entanglementMar 13 2019Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Recent experiments have shown that superconducting qubits can control and detect individual phonons in a ... More

Violating Bell's inequality with remotely-connected superconducting qubitsAug 09 2018Oct 17 2018Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, due to entanglement's key role in achieving and verifying secure communications. Remote entanglement has been realized using a number of different probabilistic ... More

Quantum control of surface acoustic wave phononsApr 19 2018The superposition of quantum states is one of the hallmarks of quantum physics, and clear demonstrations of superposition have been achieved in a number of quantum systems. However, mechanical systems have remained a challenge, with only indirect demonstrations ... More

Probing spin-phonon interactions in silicon carbide with Gaussian acousticsApr 29 2018Aug 04 2018Hybrid spin-mechanical systems provide a platform for integrating quantum registers and transducers. Efficient creation and control of such systems require a comprehensive understanding of the individual spin and mechanical components as well as their ... More

Assessing the Usability of a Novel System for Programming EducationNov 15 2017The authors present the results of a simple usability test performed on line_explorer, an innovative tool aimed at letting students explore programming. The system offers an interactive environment where students can learn, review, and practice programming ... More

Production of transverse energy from minijets in next-to-leading order perturbative QCDFeb 01 2000Jun 13 2000We compute in next-to-leading order (NLO) perturbative QCD the transverse energy carried into the central rapidity unit of hadron or nuclear collisions by the partons freed in the few-GeV subcollisions. The formulation is based on a rapidity window and ... More

Lower limits for E_T and N_ch from pQCD & hydrodynamics at the central rapidity unit in central Au-Au collisions at RHICJun 21 1999Final state average transverse energy and charged particle multiplicity at the central rapidity unit of central Au-Au collisions at RHIC are studied within a framework of lowest order perturbative QCD and Bjorken's hydrodynamical picture. In particular, ... More

Mixed States of Composite Fermions Carrying Two and Four VorticesOct 09 2000There now exists preliminary experimental evidence for some fractions, such as $\nu$ = 4/11 and 5/13, that do not belong to any of the sequences $\nu=n/(2pn\pm 1)$, $p$ and $n$ being integers. We propose that these states are mixed states of composite ... More

Roton Instability of the Spin Wave Excitation in the Fully Polarized Quatum Hall State and the Phase Diagram at $ν= 2$Jan 04 2000We consider the effect of interactions on electrons confined to two dimensions at Landau level filling $\nu=2$, with the specific aim to determine the range of parameters where the fully polarized state is stable. We calculate the charge and the spin ... More

Dynamical Objectivity in Quantum Brownian MotionJan 05 2015Nov 17 2015Classical objectivity as a property of quantum states---a view proposed to explain the observer-independent character of our world from quantum theory, is an important step in bridging the quantum-classical gap. It was recently derived in terms of spectrum ... More

Density wave patterns for fermionic dipolar molecules on a square optical lattice: Mean-field-theory analysisFeb 03 2011We model a system of ultracold fermionic dipolar molecules on a two-dimensional square lattice. Assuming that the molecules are in their nondegenerate hyperfine ground state, and that the dipole moment is polarized perpendicular to the plane (as in the ... More

Transverse energy from minijets in ultrarelativistic nuclear collisions: a next-to-leading order analysisOct 27 2000We compute in next-to-leading order (NLO) perturbative QCD the amount of transverse energy produced into a rapidity region $\Delta Y$ of a nuclear collision from partons created in the few-GeV subcollisions. The NLO formulation assumes collinear factorization ... More

TBA for the Toda chainJun 15 2010We give a direct derivation of a proposal of Nekrasov-Shatashvili concerning the quantization conditions of the Toda chain. The quantization conditions are formulated in terms of solutions to a nonlinear integral equation similar to the ones coming from ... More

Preperiodic points for rational functions defined over a rational function field of characteristic zeroMay 28 2015Aug 27 2015Let $k$ be an algebraic closed field of characteristic zero. Let $K$ be the rational function field $K=k(t)$. Let $\phi$ be a non isotrivial rational function in $K(z)$. We prove a bound for the cardinality of the set of $K$--rational preperiodic points ... More

Can We Detect Tachyons Now?May 07 2003An exact solution of the Einstein-Maxwell equations enables us to construct a hypothesis on the production of tachyons. The hypothesis determines the kinematical relations for the produced tachyon. It also makes possible to estimate the empiric conditions ... More

Realization of the spectrum generating algebra for the generalized Kratzer potentialsAug 09 2010The dynamical symmetries of the Kratzer-type molecular potentials (generalized Kratzer molecular potentials) are studied by using the factorization method. The creation and annihilation (ladder) operators for the radial eigenfunctions satisfying quantum ... More

Non-real zeros of derivatives of meromorphic functionsApr 14 2014Nov 11 2014A number of results are proved concerning non-real zeros of derivatives of real and strictly non-real meromorphic functions in the plane

Linear differential polynomials in zero-free meromorphic functionsSep 01 2016The paper determines all meromorphic functions with finitely many zeros in the plane having the property that a linear differential polynomial in the function, of order at least 3 and with rational functions as coefficients, also has finitely many zeros. ... More

Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeVMar 28 1999Jul 20 1999The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine ... More

Measurement of Ultra-Low Potassium Contaminations with Accelerator Mass SpectrometryMay 01 2007Levels of trace radiopurity in active detector materials is a subject of major concern in low-background experiments. Among the radio-isotopes, $\k40$ is one of the most abundant and yet whose signatures are difficult to reject. Procedures were devised ... More

Age and Metallicity Estimation of Globular Clusters from Stromgren PhotometryDec 08 2004We present a new technique for the determination of age and metallicity in composite stellar populations using Stromgren filters. Using principal component (PC) analysis on multi-color models, we isolate the range of values necessary to uniquely determine ... More

Tests of Chemical Enrichment Scenarios in Ellipticals Using Continuum Colors and SpectroscopyOct 22 2008We combine spectroscopic metallicity values with integrated narrowband continuum colors to explore the internal metallicity distribution in early-type galaxies. The different techniques for determining metallicity (indices versus colors) allows for an ... More

Inelastic tunneling through mesoscopic structuresDec 09 1998Our objective is to study resonant tunneling of an electron in the presence of inelastic scattering by optical phonons. Using a recently developed technique, based on exact mapping of a many-body problem onto a one-body problem, we compute transmission ... More

Strongly correlated multilayered nanostructures near the Mott transitionAug 10 2004We examine devices constructed out of multilayered sandwiches of semi-infinite metal--barrier--semi-infinite metal, with the barrier tuned to lie near the quantum critical point of the Mott metal-insulator transition. By employing dynamical mean field ... More

Formation and Evolution of Quark-Gluon Plasma at RHIC and LHCMar 07 1995Mar 09 1995Initial conditions for quark-gluon plasma formation at $\tau=0.1\fm$ are considered in lowest order perturbative QCD. Chemical composition, thermalization of the formed semihard quark-gluon system and especially implications of the new HERA parton distributions ... More

Photometric survey of stellar clusters in the outer part of M33. II. Analysis of HST/ACS imagesMar 06 2009Mar 24 2009We have used deep ACS/WFC images of M33 to check nature of extended objects detected by the ground based survey of Zloczewski et al. (2008). A total of 24 candidates turned out to be genuine compact stellar clusters. In addition we detected 91 new clusters. ... More

Degenerations of abelian surfaces and Hodge structuresApr 12 1994Apr 20 1994In this paper the authors consider a certain toroidal compactification of the moduli space of degenerations of (1,p)-polarized abelian surfaces with (canonical) level structure. Using Hodge theory we give a proof that a degenerate abelian surface associated ... More

Latitude migration of solar filamentsFeb 25 2010The Carte Synoptique catalogue of solar filaments from March 1919 to December 1989, corresponding to complete cycles 16 to 21 is utilized to show latitudinal migration of filaments at low latitudes (less than 50 deg), and the latitudinal drift of solar ... More

Two-loop Perturbative Quark Mass Renormalization from Large Beta Monte CarloNov 02 2000We present the calculation of heavy Wilson quark mass renormalization constants from large beta Monte Carlo simulations. Simulations were performed at various beta larger than 9, each on several spatial lattice sizes to allow for an infinite volume extrapolation. ... More

Generalised dimensions of measures on almost self-affine setsNov 04 2009We establish a generic formula for the generalised q-dimensions of measures supported by almost self-affine sets, for all q>1. These q-dimensions may exhibit phase transitions as q varies. We first consider general measures and then specialise to Bernoulli ... More

The Nature of the Giant Outbursts in the Bursting Pulsar GRO J 1744-28May 20 1996We investigate the possible role of an accretion disk instability in producing the giant outbursts seen in GRO J1744-28. Specifically, we study the global, time dependent evolution of the Lightman-Eardley instability which can develop near the inner edge ... More

Quantum dynamics of the harmonic oscillator on a cylinderAug 13 2013Evolution of coherent states is considered for a particle confined to a cylinder moving in a harmonic oscillator potential. Because of the discontinuous changes as time goes by of the phase representing the position of a particle on a parallel (circle) ... More

The Bargmann representation for the quantum mechanics on a sphereNov 16 2000The Bargmann representation is constructed corresponding to the coherent states for a particle on a sphere introduced in: K. Kowalski and J. Rembielinski, J. Phys. A: Math. Gen. 33, 6035 (2000). The connection is discussed between the introduced formalism ... More

Quantum Jumps on a CircleOct 18 2000It is demonstrated that in contrast to the well-known case with a quantum particle moving freely in a real line, the wave packets corresponding to the coherent states for a free quantum particle on a circle do not spread but develop periodically in time. ... More

Coherent states for a particle on a sphereDec 21 1999The coherent states for a particle on a sphere are introduced. These states are labelled by points of the classical phase space, that is the position on the sphere and the angular momentum of a particle. As with the coherent states for a particle on a ... More

The Salpeter equation and probability current in the relativistic Hamiltonian quantum mechanicsOct 24 2011The probablity current for a quantum spinless relativistic particle is introduced based on the Hamiltonian dynamics approach utilizing the Salpeter equation as an alternative of the Klein-Gordon equation. The correctness of the presented formalism is ... More

Nonequilibrium evolution and symmetry structure of the large-N $Φ^4$ model at finite temperatureMar 31 2000Apr 18 2000We consider the large-N $\Phi^4$ theory with spontaneously broken symmetry at finite temperature. We study, in the large-N limit, quantum states which are characterized by a time dependent, spatially homogenous expectation value of one of the field components, ... More

Transport in gapped bilayer graphene: the role of potential fluctuationsAug 04 2010We employ a dual-gated geometry to control the band gap \Delta in bilayer graphene and study the temperature dependence of the resistance at the charge neutrality point, RNP(T), from 220 to 1.5 K. Above 5 K, RNP(T) is dominated by two thermally activated ... More

Real-Part Estimates for Solutions of the Riesz System in $\mathbb{R}^3$Apr 07 2010Main goal of this paper is to generalize Hadamard's real part theorem and invariant forms of Borel-Carath\'eodory's theorem from complex analysis to solutions of the Riesz system in the three-dimensional Euclidean space in the framework of quaternionic ... More

On the development of Bohr's phenomenon in the context of Quaternionic analysis and related problemsApr 07 2010The Bohr theorem states that any function $f(z) = \sum_{n=0}^{\infty} a_{n} z^{n}$, analytic and bounded in the open unit disk, obeys the inequality $\sum_{n=0}^{\infty} |a_{n}| |z|^{n} < 1$ in the open disk of radius 1/3, the so-called Bohr radius. Moreover, ... More

Structure of even-even Cadmium isotopes from the beyond-mean-field interacting boson modelFeb 07 2018The structure of even-even $^{108-116}$Cd isotopes is investigated based on the self-consistent mean-field approach. By mapping the quadrupole-$(\beta,\gamma)$ deformation energy surface, obtained from the constrained self-consistent mean-field calculations ... More

Magnetization process and magnetocaloric effect of the spin-1/2 XXZ Heisenberg cuboctahedronNov 14 2016Magnetic properties of the spin-1/2 XXZ Heisenberg cuboctahedron are examined using exact numerical diagonalization depending on a relative strength of the exchange anisotropy. While the Ising cuboctahedron exhibits in a low-temperature magnetization ... More

On a Class of Symplectic Similarity Transformation MatricesFeb 24 2002We present a class of symplectic matrices which transform by similarity given $2n\times 2n$ -dimensional matrix into Bunse-Gerstner form. If the given matrix is skew-Hamiltonian, the transformation gives a solution of an antisymmetric Riccati matrix equation, ... More

A Frame Bundle Generalization of Multisymplectic Momentum MappingsNov 21 2001This paper presents generalized momentum mappings for covariant Hamiltonian field theories. The new momentum mappings arise from a generalization of symplectic geometry to $L_VY$, the bundle of vertically adapted linear frames over the bundle of field ... More

On the frequentist validity of Bayesian limitsNov 25 2016Nov 27 2017To the frequentist who computes posteriors, not all priors are useful asymptotically: in this paper Schwartz's 1965 Kullback-Leibler condition is generalised to enable frequentist interpretation of convergence of posterior distributions with the complex ... More

Mathematical models for chemotaxis and their applications in self-organisation phenomenaJun 22 2018Jun 25 2018Chemotaxis is a fundamental guidance mechanism of cells and organisms, responsible for attracting microbes to food, embryonic cells into developing tissues, immune cells to infection sites, animals towards potential mates, and mathematicians into biology. ... More

Centrality dependence of multiplicities in ultrarelativistic nuclear collisionsSep 21 2000We compute the centrality dependence of multiplicities of particles produced in ultrarelativistic nuclear collisions at various energies and atomic numbers. The computation is carried out in perturbative QCD with saturated densities of produced gluons ... More

Line identification in soft X-ray spectra of stellar coronae by comparison with the hottest white dwarf's photosphere: Procyon, alpha Cen A+B, and H1504+65Jan 13 2005H1504+65 is a young white dwarf with an effective temperature of 200,000 K and is the hottest post-AGB star ever analysed with detailed model atmospheres. Chandra LETG+HRC-S spectra have revealed the richest X-ray absorption line spectrum recorded from ... More

SMC3 as a test to the binary evolutionDec 11 2015SMC 3 is one of the most interesting symbiotic stars. This binary contains a bright K-type giant transferring mass to a massive white dwarf comanion, which makes it is a very promising SN Ia candidate. We discuss the evolutionary status of the system ... More

IAU Planet Definition: Some Confusions and Their ModificationsOct 06 2008International Astronomical Union (IAU) has passed the must needed definition of planet in its general assembly held in Prague during August 2006. The definition had to be passed by means of voting. A group of scientists who raised the banner of revolt ... More

Limits on Lorentz violation from charged-pion decayApr 30 2014Charged-pion decay offers many opportunities to study Lorentz violation. Using an effective field theory approach, we study Lorentz violation in the lepton, W-boson, and quark sectors and derive the differential pion-decay rate, including muon polarization. ... More

Activation gaps for the fractional quantum Hall effect: realistic treatment of transverse thicknessOct 18 1999The activation gaps for fractional quantum Hall states at filling fractions $\nu=n/(2n+1)$ are computed for heterojunction, square quantum well, as well as parabolic quantum well geometries, using an interaction potential calculated from a self-consistent ... More

The large scale geometry of some metabelian groupsJan 16 2003We study the large scale geometry of the upper triangular subgroup of PSL(2,Z[1/n]), which arises naturally in a geometric context. We prove a quasi-isometry classification theorem and show that these groups are quasi-isometrically rigid with infinite ... More

On the dynamics of a particle on a coneApr 16 2013Apr 22 2013A detailed study of the classical and quantum mechanics of a free particle on a double cone and the particle bounded to its tip by the harmonic oscillator potential is presented.

The relativistic massless harmonic oscillatorFeb 02 2010A detailed study of the relativistic classical and quantum mechanics of the massless harmonic oscillator is presented.

Coherent states for the q-deformed quantum mechanics on a circleDec 20 2004The q-deformed coherent states for a quantum particle on a circle are introduced and their properties investigated.

Groups and nonlinear dynamical systems. Dynamics on the SU(2) groupJan 14 1998An abstract Newton-like equation on a general Lie algebra is introduced such that orbits of the Lie-group action are attracting set. This equation generates the nonlinear dynamical system satisfied by the group parameters having an attractor coinciding ... More

Unitary representations of N-conformal Galilei groupMay 21 2013Jun 13 2013All unitary irreducible representations of centrally extended (N-odd) N-conformal Galilei group are constructed. The "on-shell" action of the group is derived and shown to coincide, in special but most important case, with that obtained in: J. Gomis, ... More

The like-sign dimuon charge asymmetry in SUSY modelsJun 28 2010Feb 08 2011We study the new physics (NP) implications of the recently reported 3.2 sigma Standard Model (SM) deviation in the like-sign dimuon asymmetry at the Tevatron. Assuming that new physics only enters the B(s) mixing amplitude we explore the implications ... More

Multi-Phase Gas Dynamics in a Weak Barred PotentialOct 09 2001The structure of the interstellar medium in the central kpc region of a galaxy with a weak bar-like potential is investigated taking into account realistic cooling and heating processes and the self-gravity of the gas. Using high resolution hydrodynamical ... More

Gauge invariance of the one-loop effective action of the Higgs field in the SU(2) Higgs modelMay 27 1999Jul 29 1999The one-loop effective action of the abelian and nonabelian Higgs models has been studied in various gauges, in the context of instanton and sphaleron transition, bubble nucleation and most recently in nonequilibrium dynamics. Gauge invariance is expected ... More

Quadrupole Collective States in a Large Single-J ShellOct 21 1994We discuss the ability of the generator coordinate method (GCM) to select collective states in microscopic calculations. The model studied is a single-$j$ shell with hamiltonian containing the quadrupole-quadrupole interaction. Quadrupole collective excitations ... More

CP violation at one loop in the polarization-independent chargino production in e+e- collisionsSep 19 2007Oct 17 2007Recently Osland and Vereshagin noticed, based on sample calculations of some box diagrams, that in unpolarised e+e- collisions CP-odd effects in the non-diagonal chargino-pair production process are generated at one-loop. Here we perform a full one-loop ... More

Are Superhumps Good Measures of the Mass Ratio for AM CVn Systems?May 01 2007We extend recent work that included the effect of pressure forces to derive the precession rate of eccentric accretion discs in cataclysmic variables to the case of double degenerate systems. We find that the logical scaling of the pressure force in such ... More

Effective action and density functional theoryAug 10 2001Jul 09 2002The effective action for the charge density and the photon field is proposed as a generalization of the density functional. A simple definition is given for the density functional, as the functional Legendre transform of the generator functional of connected ... More

Analysis of cosmic ray dataFeb 07 2000Reviews statistical methods for 1- and 2-dimensional analysis of cosmic ray data including recent Bayesian analyses.

Effective Polyakov line action from the relative weights methodJan 21 2013We apply the relative weights method (arXiv:1209.5697) to determine the effective Polyakov line action for SU(2) lattice gauge theory in the confined phase, at lattice coupling beta=2.2 and N_t=4 lattice spacings in the time direction. The effective action ... More

Helioseismic Investigation of Modeled and Observed Supergranule StructureApr 06 2015The subsurface structure of an "average" supergranule is derived from existing HMI pipeline time-distance data products and compared to the best helioseismic flow model detailed in Duvall and Hanasoge (2013). We find that significant differences exist ... More

Unfortunate TerminologyMar 01 2003The phrase "negative squared rest mass" can sometimes be found in papers on neutrinos and frequently occurs in the tachyonic literature. Consequently, some authors say that "the rest mass of tachyons is imaginary". Besides, the statement "photons have ... More

Chemical evolution of high-mass stars in close binaries. I. The eclipsing binary V453 CygniDec 19 2008The eclipsing and double-lined spectroscopic binary system V453 Cygni consists of two early B-type stars, one of which is nearing the terminal age main sequence and one which is roughly halfway through its main sequence lifetime. Accurate measurements ... More

Probing the models: Abundances for high-mass stars in binariesDec 18 2013The complexity of composite spectra of close binary star system makes study of the spectra of their component stars extremely difficult. For this reason there exists very little information on the photospheric chemical composition of stars in close binaries, ... More

Monte Carlo simulation of multiple scattered light in the atmosphereFeb 17 2014We present a Monte Carlo simulation for the scattering of light in the case of an isotropic light source. The scattering phase functions are studied particularly in detail to understand how they can affect the multiple light scattering in the atmosphere. ... More

Particle Ratios at CERN, BNL and GSI : Unified Description of Freeze-Out ParametersJun 22 1999It is shown that the chemical freeze-out parameters obtained at CERN/SPS, BNL/AGS and GSI/SIS energies all correspond to a unique value of 1 GeV for the average energy per hadron.

Kinetic Sunyaev-Zeldovich effect from galaxy cluster rotationAug 21 2002We show how the temperature and the polarisation of the cosmic microwave background are affected by bulk rotation of clusters of galaxies owing to the kinetic Sunyaev-Zeldovich effect. The main effects of rotation are (i) a shift of the position of the ... More

LFV and FCNC in a large tan beta SUSY-seesawJun 13 2006Jul 17 2006Realistic predictions are made for lepton flavour violating and flavour changing neutral current decays in the large tan beta regime of a SUSY-seesaw model. Lepton flavour violating neutral Higgs decays are discussed within this framework along with the ... More

Measurement of Trace I-129 Concentrations in CsI Powder and Organic Liquid Scintillator with Accelerator Mass SpectrometryDec 01 2005Levels of trace radiopurity in active detector materials is a subject of major concern in low-background experiments. Procedures were devised to measure trace concentrations of I-129 in the inorganic salt CsI as well as in organic liquid scintillator ... More

CPN Models in General CoordinatesJan 16 2002An analysis of CPN models is given in terms of general coordinates or arbitrary interpolating fields.Only closed expressions made from simple functions are involved.Special attention is given to CP2 and CP4. In the first of these the retrieval of stereographic ... More

Probing the $WWγ$ vertex at hadron collidersJul 15 1999We present a new, model independent method for extracting bounds for the anomalous $\gamma WW$ couplings from hadron collider experiments. At the partonic level we introduce a set of three observables which are constructed from the unpolarized differential ... More

Effect of anisotropic hopping on the Bose Hubbard model phase diagram: strong-coupling perturbation theory on a square latticeApr 18 2008There has been a recent resurgence of experimental efforts to quantitatively determine the phase diagram of the Bose Hubbard model by carefully analyzing experiments with ultracold bosonic atoms on an optical lattice. In many realizations of these experiments, ... More

Crossover from tunneling to incoherent (bulk) transport in a correlated nanostructureJan 07 2004We calculate the junction resistance for a metal-barrier-metal device with the barrier tuned to lie just on the insulating side of the metal-insulator transition. We find that the crossover from tunneling behavior in thin barriers at low temperature to ... More

On the frequentist validity of Bayesian limitsNov 25 2016Four frequentist theorems on the large-sample limit behaviour of posterior distributions are proved, for posterior consistency in metric or weak topologies; for posterior rates of convergence in metric topologies; for consistency of the Bayes factor for ... More

Hilbert Coefficients and Depth of the Associated Graded Ring of an IdealJan 31 2008In this expository paper we survey results that relate Hilbert coefficients of an m-primary ideal I in a Cohen-Macaulay local ring (R, m) with depth of the associated graded ring G(I). Several results in this area follow from two theorems of S. Huckaba ... More

Good Reduction for Endomorphisms of the Projective Line in Terms of the Branch LocusMay 19 2015Let $K$ be a number field and $v$ a non archimedean valuation on $K$. We say that an endomorphism $\Phi\colon \mathbb{P}_1\to \mathbb{P}_1$ has good reduction at $v$ if there exists a model $\Psi$ for $\Phi$ such that $\deg\Psi_v$, the degree of the reduction ... More

RejoinderAug 19 2011Rejoinder of "Impact of Frequentist and Bayesian Methods on Survey Sampling Practice: A Selective Appraisal" by J. N. K. Rao [arXiv:1108.2356]

Equilibrium points of logarithmic potentials on convex domainsJan 30 2006Let $D$ be a convex domain in the plane. Let $a_k$ be summable positive constants and let each $z_k$ lie in $D$. If the $z_k$ converge sufficiently rapidly to a boundary point of $D$ from within an appropriate Stolz angle then the function $f(z) = \sum_{k=1}^\infty ... More

Bank-Laine functions, the Liouville transformation and the Eremenko-Lyubich classApr 12 2018Dec 21 2018The Bank-Laine conjecture concerning the oscillation of solutions of second order homogeneous linear differential equations has recently been disproved by Bergweiler and Eremenko. It is shown here, however, that the conjecture is true if the set of finite ... More

Calabi-Yau threefolds of quotient typeSep 29 1999First, we classify Calabi-Yau threefolds with infinite fundamental group by means of their minimal splitting coverings introduced by Beauville, and deduce that the nef cone is a rational simplicial cone and any rational nef divisor is semi-ample if the ... More

Possible candidate of the cold dark matter and mass origin discovered from the $β$ decayNov 16 2000Dec 30 2000This paper has been withdrawn by the author(s) since somebody do not agree with my idea.

Scaling of transverse energies and multiplicities with atomic number and energy in ultrarelativistic nuclear collisionsSep 21 1999We compute how the initial energy density and produced gluon, quark and antiquark numbers scale with atomic number and beam energy in ultrarelativistic heavy ion collisions. The computation is based on the argument that the effect of all momentum scales ... More

Two-Roton Bound State in the Fractional Quantum Hall EffectApr 27 2000The true nature of the lowest-energy, long-wavelength neutral excitation of the fractional quantum Hall effect has been a long outstanding problem. In this Letter, we establish that it is a two-roton bound state.

Spontaneous Magnetization of Composite FermionsOct 19 1999It is argued that the composite fermion liquid is a promising candidate for an observation of the elusive, interaction driven magnetization first proposed by Bloch seven decades ago. In analogy to what is theoretically believed to be the case for the ... More

The Center symmetry and its spontaneous breakdown at high temperaturesNov 15 2000We examine the role of the center Z(N) of the gauge group SU(N) in gauge theories. In this pedagogical article, we discuss, among other topics, the center symmetry and confinement and deconfinement in gauge theories and associated finite-temperature phase ... More

Composite Fermions in Quantum DotsSep 08 1994Sep 12 1994We demonstrate the formation of composite fermions in two-dimensional quantum dots under high magnetic fields. The composite fermion interpretation provides a simple way to understand several qualitative and quantitative features of the numerical results ... More

NLO QCD Corrections and Triple Gauge Boson Vertices at the NLCJan 23 1998We study NLO QCD corrections as relevant to hadronic W decay in W pair production at a future 500 GeV electron-positron linac, with particular emphasis on the determination of triple gauge boson vertices. We find that hard gluon bremstrahlung may mimic ... More

Possible Nonstandard Effects in Z+Gamma Events at LEP2Oct 01 1998We point out that the so--called 'radiative return' events at LEP2 are suited to the study of nonstandard physics, particularly if the vector bosons are emitted into the central detector region. An effective vertex is constructed which contains the most ... More

X-rays from Interacting and Merging GalaxiesOct 08 1998We have used ROSAT PSPC and HRI to study the properties of the soft X-ray emission in a sample of colliding starburst galaxies. Together with data from other spectral ranges (optical, radio and FIR) we investigate the emergence of soft X-ray emission ... More

X-rays from Blue Compact Dwarf GalaxiesOct 07 1998We present first results of a study devoted to the analysis of the X-ray emission as tracer of activity and diagnostic tool for the structural properties of Blue Compact Dwarf Galaxies. The case of Henize 2-10 is being reviewed, and first trends are discussed. ... More

Quasi-degenerate neutrinos and leptogenesis from L_mu-L_tauMar 06 2007Oct 01 2007We provide a framework for quasi-degenerate neutrinos consistent with a successful leptogenesis, based on the L_mu-L_tau flavor symmetry and its breaking pattern. In this scheme, a fine-tuning is needed to arrange the small solar neutrino mass splitting. ... More

Magnetization reversal in the anisotropy-dominated regime using time-dependent magnetic fieldsNov 21 2005We study magnetization reversal using various r.f. magnetic pulses. We show numerically that switching is possible with simple sinusoidal pulses; however the optimum approach is to use a frequency-swept (chirped) r.f. magnetic pulse, the shape of which ... More

Off-lattice simulation of the solid phase DNA amplificationDec 05 2004Recent simulations of the solid phase DNA amplification (SPA) by J.-F. Mercier et al (Biophys. J. 85 (2003) 2075) are generalized to include two kinds of primers and the off-lattice character of the primer distribution on the surface. The sigmoidal character ... More