Results for "V. M. Passegger"

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Generalized investigation of the rotation-activity relation: Favouring rotation period instead of Rossby numberAug 26 2014Magnetic activity in Sun-like and low-mass stars causes X-ray coronal emission, which is stronger for more rapidly rotating stars. This relation is often interpreted in terms of the Rossby number, i.e., the ratio of rotation period to convective overturn ... More
Spectroscopic characterisation of CARMENES target candidates from FEROS, CAFE and HRS high-resolution spectraJul 29 2016CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) started a new planet survey on M-dwarfs in January this year. The new high-resolution spectrographs are operating in the visible ... More
The CARMENES search for exoplanets around M dwarfs - Photospheric parameters of target stars from high-resolution spectroscopyFeb 08 2018The new CARMENES instrument comprises two high-resolution and high-stability spectrographs that are used to search for habitable planets around M dwarfs in the visible and near-infrared regime via the Doppler technique. Characterising our target sample ... More
CARMENES input catalogue of M dwarfs: III. Rotation and activity from high-resolution spectroscopic observationsFeb 06 2018CARMENES is a spectrograph for radial velocity surveys of M dwarfs with the aim of detecting Earth-mass planets orbiting in the habitable zones of their host stars. To ensure an optimal use of the CARMENES Guaranteed Time Observations, in this paper we ... More
Do have nanosatellites a role in detecting exoplanets?Nov 23 2012In December 2012, Austria will launch its first two satellites: UniBRITE and BRITE-Austria. This is the first pair of three, forming a network called BRITE-Constellation. The other pairs being contributed by Canada and Poland. The primary goal of BRITE-Constellation ... More
Fundamental M-dwarf parameters from high-resolution spectra using PHOENIX ACES models: I. Parameter accuracy and benchmark starsJan 08 2016M-dwarf stars are the most numerous stars in the Universe; they span a wide range in mass and are in the focus of ongoing and planned exoplanet surveys. To investigate and understand their physical nature, detailed spectral information and accurate stellar ... More
The CARMENES search for exoplanets around M dwarfs: High-resolution optical and near-infrared spectroscopy of 324 survey starsNov 17 2017Dec 15 2017The CARMENES radial velocity (RV) survey is observing 324 M dwarfs to search for any orbiting planets. In this paper, we present the survey sample by publishing one CARMENES spectrum for each M dwarf. These spectra cover the wavelength range 520--1710nm ... More
The CARMENES search for exoplanets around M dwarfs - HD 147379b: A nearby Neptune in the temperate zone of an early-M dwarfDec 15 2017We report on the first star discovered to host a planet detected by radial velocity (RV) observations obtained within the CARMENES survey for exoplanets around M dwarfs. HD 147379 ($V = 8.9$ mag, $M = 0.58 \pm 0.08$ M$_{\odot}$), a bright M0.0V star at ... More
Threshold singularities in the dynamic response of gapless integrable modelsOct 18 2007Mar 23 2008We develop a method of an asymptotically exact treatment of threshold singularities in dynamic response functions of gapless integrable models. The method utilizes the integrability to recast the original problem in terms of the low-energy properties ... More
K-theory and the Enriched Tits BuildingApr 27 2010May 31 2010Motivated by the splitting principle, we define certain simplicial complexes associated to an associative ring $A$, which have an action of the general linear group $GL(A)$. This leads to an exact sequence, involving Quillen's algebraic K-groups of $A$ ... More
On the theory of pseudogap anisotropy in the cuprate superconductorsApr 14 2004Apr 15 2004We show by means of the theory of the order parameter phase fluctuations that the temperature of "closing" (or "opening") of the gap (and pseudogap) in the electron spectra of superconductors with anisotropic order parameter takes place within a finite ... More
Superconducting properties of the 2D models with different types of inter-particle couplingMay 08 2003The superconducting properties of the 2D fermion system with local and different types of the indirect boson-exchange attractions in the cases of s-wave and d-wave pairing are reviewed and analysed at T=0. In particular, the possibility of the crossover ... More
Temperature-doping phase diagram of layered superconductorsMay 08 2003The superconducting properties of a layered system are analyzed for the cases of zero- and non-zero angular momentum of the pairs. The effective thermodynamic potential for the quasi-2D XY-model for the gradients of the phase of the order parameter is ... More
New Narrow Nucleon N*(1685)Jul 21 2008Oct 19 2008We argue that the existence of a new narrow (Gamma < 25 MeV) nucleon resonance N*(1685) is strongly supported by recent data on eta photoproduction off the nucleon. The resonance has much stronger photo-coupling to the neutron than to the proton. This ... More
Wide ultrarelativistic plasma beam -- magnetic barrier collision and astrophysical applicationsApr 15 1997The interaction between a wide ultrarelativistic fully-ionized plasma beam and a magnetic barrier is studied numerically. It is assumed that the plasma beam is initially homogeneous and impacts with the Lorentz factor $\Gamma_0\gg 1$ on the barrier. The ... More
Mixing and decays of the antidecuplet in the context of approximate SU(3) symmetryJan 03 2005We consider mixing of the antidecuplet with three J^P=1/2^+ octets (the ground-state octet, the octet containing N(1440), \Lambda(1600), \Sigma(1660) and \Xi(1690) and the octet containing N(1710), \Lambda(1800), \Sigma(1880) and \Xi(1950)) in the framework ... More
Spin-Exchange-Relaxation-Free Magnetometry Using Elliptically-Polarized LightMar 13 2009Spin-exchange relaxation free alkali-metal magnetometers typically operate in the regime of high optical density, presenting challenges for simple and efficient optical pumping and detection. We describe a high-sensitivity Rb magnetometer using a single ... More
Modulational instability in cigar shaped Bose-Einstein condensates in optical latticesJun 12 2001Sep 02 2001A self consistent theory of a cigar shaped Bose-Einstein condensate (BEC) periodically modulated by a laser beam is presented. We show, both theoretically and numerically, that modulational instability/stability is the mechanism by which wavefunctions ... More
Effects of the Lorentz invariance violation in Coulomb interaction in nuclei and atomsOct 26 2016Anisotropy in the speed of light (studied in the Michelson-Morley experiment ) generates anisotropy in the Coulomb interaction. This anisotropy manifests itself in the nuclear and atomic experiments. The experimental results for 21Ne are used to improve ... More
Electron Spin Resonance investigation of undoped and Li-doped CdWO_4 scintillator crystalsMay 25 2009Electron spin resonance (ESR) spectra of Fe3+ and Mn2+ ions have been studied in the nominally pure and 0.05% Li-doped single crystals of CdWO4. The zero-field splitting parameters are determined with a high precision for both of the impurities. The result ... More
On the Theory of the Pseudogap Formation in 2D Attracting Fermion SystemsJul 18 1997Two-dimensional system of the fermions with the indirect Einstein phonon-exchange attraction and added local four-fermion interaction is considered. It is shown that in such a system at resulting attraction between particles a new nonsuperconducting phase ... More
Superconductivity and superconducting order parameter phase fluctuations in a weakly doped antiferromagnetOct 30 2006The superconducting properties of a recently proposed phenomenological model for a weakly doped antiferromagnet are analyzed, taking into account fluctuations of the phase of the order parameter. In this model, we assume that the doped charge carriers ... More
Defect modes of a Bose-Einstein condensate in an optical lattice with a localized impurityMar 31 2006We study defect modes of a Bose-Einstein condensate in an optical lattice with a localized defect within the framework of the one-dimensional Gross-Pitaevskii equation. It is shown that for a significant range of parameters the defect modes can be accurately ... More
Quantum Dilogarithm and Tetrahedron EquationNov 21 1995Dec 06 1995This paper has been temporarily withdrawn for corrections.
Green function of fermions in 2D superconducting Frohlich model with inhomogeneous order parameterJul 24 2000The fermion Green function and spectral characteristics for the 2D Frohlich model of superconductivity at static fluctuations in the phase of the order parameter are calculated. The results demonstrate strongly non-Fermi-liquid properties of the system ... More
On temperature versus doping phase diagram of high critiical temperature superconductorsMar 02 1998The attempt to describe the bell-shape dependence of the critical temperature of high-$T_{c}$ superconductors on charge carriers density is made. Its linear increase in the region of small densities (underdoped regime) is proposed to explain by the role ... More
Spontaneous emission rate of an excited atom placed near a nanofiberJun 17 2002Dec 20 2002The spontaneous decay rates of an excited atom placed near a dielectric cylinder are investigated. A special attention is paid to the case when the cylinder radius is small in comparison with radiation wavelength (nanofiber or photonic wire). In this ... More
Spin fluctuations and the "strange metal" behavior of a weakly doped antiferromagnetMay 14 2008We analyze the spectral properties of a phenomenological model for a weakly doped two-dimensional antiferromagnet, in which the carriers move within one of the two sublattices where they were introduced. Such a constraint results in the free carrier spectra ... More
Crossover from superfluidity to superconductivity in a system with doping dependent attractionMar 22 2002Zero temperature crossover from superfluidity to superconductivity with carrier density increasing is studied for a two-dimensional system in the s-wave and d-wave pairing channels. It was assumed that the particle attraction correlation length depends ... More
A note on inequalities for the masses of the lightest pi-pi resonances in large N_c QCDApr 27 2001Jul 09 2001We derive and analyse inequalities relating masses of the lightest pi-pi resonances (rho and sigma) to low energy couplings of the effective chiral Lagrangian in the limit of large number of colours.
On a Dirac particle in an uniform magnetic field in 3-dimensional spaces of constant curvatureJul 24 2010Aug 29 2011There are constructed exact solutions of the quantum-mechanical Dirac equation for a spin S=1/2 particle in Riemannian space of constant negative curvature, hyperbolic Lobachevsky space, in presence of an external magnetic field, analogue of the homogeneous ... More
Exact solutions for quantum mechanical particle with spin 1 in the external homogeneous magnetic fieldMay 19 2010With the use of the general covariant matrix 10-dimensional Petiau -- Duffin -- Kemmer formalism in cylindrical coordinates and tetrad there are constructed exact solutions of the quantum-mechanical equation for a particle with spin 1 in presence of an ... More
Approach to Equilibrium of a Nondegenerate Quantum System: Decay of Oscillations and Detailed Balance as Separate Effects of a ReservoirAug 13 2013The approach to equilibrium of a nondegenerate quantum system involves the damping of microscopic population oscillations, and, additionally, the bringing about of detailed balance, i.e. the achievement of the correct Boltzmann factors relating the populations. ... More
Polarization dependence of phonon influences in exciton-biexciton quantum dot systemsDec 04 2012We report on a strong dependence of the phonon-induced damping of Rabi dynamics in an optically driven exciton-biexciton quantum dot system on the polarization of the exciting pulse. While for a fixed pulse intensity the damping is maximal for linearly ... More
A Block Circulant Embedding Method for Simulation of Stationary Gaussian Random Fields on Block-regular GridsNov 06 2014Apr 09 2015We propose a new method for sampling from stationary Gaussian random field on a grid which is not regular but has a regular block structure which is often the case in applications. The introduced block circulant embedding method (BCEM) can outperform ... More
Renormalons and Power CorrectionsOct 18 2000Even for short-distance dominated observables the QCD perturbation expansion is never complete. The divergence of the expansion through infrared renormalons provides formal evidence of this fact. In this article we review how this apparent failure can ... More
Symmetric units in integral group ringsDec 19 2007In this paper, we study the question of when the symmetric units in an integral group ring ZG form a multiplicative group. When G is periodic, necessary and sufficient conditions are given for this to occur.
$p$-Adic Haar multiresolution analysis and pseudo-differential operatorsMay 16 2007The notion of {\em $p$-adic multiresolution analysis (MRA)} is introduced. We discuss a ``natural'' refinement equation whose solution (a refinable function) is the characteristic function of the unit disc. This equation reflects the fact that the characteristic ... More
Small-amplitude excitations in a deformable discrete nonlinear Schroedinger equationNov 04 1996A detailed analysis of the small-amplitude solutions of a deformed discrete nonlinear Schr\"{o}dinger equation is performed. For generic deformations the system possesses "singular" points which split the infinite chain in a number of independent segments. ... More
Quadrupole transitions near interface: general theory and application to atom inside a planar cavityApr 18 2005Apr 19 2005Quadrupole radiation of an atom in an arbitrary environment is investigated within classical as well as quantum electrodynamical approaches. Analytical expressions for decay rates are obtained in terms of Green function of Maxwell equations. The equivalence ... More
SU(3) systematization of baryonsDec 28 2005We review the spectrum of all baryons with the mass less than approximately 2000-2200 MeV using methods based on the approximate flavor SU(3) symmetry of the strong interaction. The application of the Gell-Mann--Okubo mass formulas and SU(3)-symmetric ... More
Dual parameterization of generalized parton distributions and description of DVCS dataJul 15 2005Aug 03 2005We discuss a new leading-order parameterization of generalized parton distributions of the proton, which is based on the idea of duality. In its minimal version, the parameterization is defined by the usual quark singlet parton distributions and the form ... More
Possible high-temperature superconductivity in multilayer graphane: can the cuprates be beaten?Feb 22 2011We analyze a possible superconductivity in the hole-doped system of layered hydrogenized graphene by taking into account thermal fluctuations of the order parameter. In particular, we demonstrate that in the one-layer case the values of the high mean-field ... More
Integrability versus topology of configuration manifolds and domains of possible motionsJan 24 2005We establish a generic sufficient condition for a compact $n$-dimensional manifold bearing an integrable geodesic flow to be the $n$-torus. As a complementary result, we show that in the case of domains of possible motions with boundary, the first Betti ... More
The limits of volume reflection in bent crystalsAug 12 2009We show that theory predictions for volume reflection in bent crystals agree with recent experimental data. This makes possible to predict volume reflection angle and efficiency in a broad range of energy for various crystals. A simple formula is proposed ... More
Channeling as a method of making nanosized beams of particlesMar 14 2005Particle channeling in a bent crystal lattice has led to an efficient instrument for beam steering at accelerators, demonstrated from MeV to TeV energies. In particular, crystal focusing of high energy protons to micron size has been demonstrated at IHEP ... More
Plasticity of Ferromagnets near the Curie PointAug 14 2002We propose an explanation of the anomalous growth of plasticity in ferromagnets near the Curie point. We demonstrate that this effect is caused by spin-dependent detachment of dislocations from obstacles under an influence of the internal magnetic field. ... More
Carbon Fractionation in PDRsNov 15 2012We upgraded the chemical network from the UMIST Database for Astrochemistry 2006 to include isotopes such as ^{13}C and ^{18}O. This includes all corresponding isotopologues, their chemical reactions and the properly scaled reaction rate coefficients. ... More
Integrability of the Gibbons--Tsarev systemNov 27 2007A new approach extracting multi-parametric hydrodynamic reductions for the integrable hydrodynamic chains is presented. The Benney hydrodynamic chain is considered.
$q$-Breathers in finite lattices: nonlinearity and weak disorderDec 04 2008Nonlinearity and disorder are the recognized ingredients of the lattice vibrational dynamics, the factors that could be diminished, but never excluded. We generalize the concept of $q$-breathers -- periodic orbits in nonlinear lattices, exponentially ... More
New interactions in the radiative pion decayOct 17 2003The preliminary results of PIBETA experiment strongly suggest the presence of non V-A anomalous interactions in the radiative pion decay. Without a guiding idea about the nature of these new interactions it is very difficult to interpret and fit experimental ... More
Quantum synchronization in disordered superconducting metamaterialsSep 15 2016I report a theoretical study of collective coherent quantum-mechanical oscillations in disordered superconducting quantum metamaterials (SQMs), i.e artificially fabricated arrays of qubits (two-levels system) embedded in a low-dissipative resonator. An ... More
Properties of Particles Obeying Ambiguous StatisticsDec 08 1996Jul 26 1997A new class of identical particles which may exhibit both Bose and Fermi statistics with respective probabilities $p_b$ and $p_f$ is introduced. Such an uncertainity may be either an intrinsic property of a particle or can be viewed as an ``experimental ... More
Hybrid optical pumping of optically dense alkali-metal vapor without quenching gasSep 26 2010Optical pumping of an optically thick atomic vapor typically requires a quenching buffer gas, such as N$_{2}$, to prevent radiation trapping of unpolarized photons which would depolarize the atoms. We show that optical pumping of a trace contamination ... More
Four loop reciprocity of twist two operators in N=4 SYMJan 09 2009Feb 17 2009The four loop universal anomalous dimension of twist-2 operators in N=4 SYM has been recently conjectured. In this paper, we prove that it obeys a generalized Gribov-Lipatov reciprocity, previously known to hold at the three loop level.
Characters of highest weight modules over affine Lie algebras are meromorphic functionsApr 22 2007We show that the characters of all highest weight modules over an affine Lie algebra with the highest weight away from the critical hyperplane are meromorphic functions in the positive half of Cartan subalgebra, their singularities being at most simple ... More
Nuclear DVCS at small-x using the color dipole phenomenologyOct 20 2008Dec 08 2008Using the high energy color dipole formalism, we study the coherent and incoherent nuclear DVCS process in the small-x regime. We consider simple models for the elementary dipole-hadron scattering amplitude that captures main features of the dependence ... More
Hard diffractive quarkonium hadroproduction at high energiesAug 16 2007Dec 21 2007We present a study of heavy quarkonium production in hard diffractive process by the Pomeron exchange for Tevatron and LHC energies. The numerical results are computed using recent experimental determination of the diffractive parton density functions ... More
An estimation of single and double diffractive heavy flavour production in hadron-hadron collidersMay 07 2007Aug 06 2007Results from a phenomenological analysis for diffractive hadroproduction of heavy flavors at high energies are reported. Diffractive production of charm, bottom and top are calculated using Regge factorization, taking into account recent experimental ... More
A formula for the partition function of the beta-gamma system on the cone pure spinorsFeb 15 2016In this note, we propose a closed formula for the partition function $Z(t,q)$ of the $\beta\gamma$ system on the cone of pure spinors. We give the answer in terms of theta functions, $q$-Pochhammer symbols and Eisenstein series.
Quantized electromagnetic tornado in pulsar vacuum gapSep 05 2009The solution for the electromagnetic tornado in a vacuum gap of a pulsar that could serve as an explanation of the observed circular polarization of giant pulses from pulsars and might also explain the frequency strips observed in giant pulses spectrum ... More
Gluon polarization tensor in color magnetic backgroundJul 14 2005Oct 28 2006In SU(2) gluodynamics we calculate the gluon polarization tensor in an Abelian homogeneous magnetic field in one-loop order in the Lorentz background field gauge. It turned out to be non transversal and consisting of ten tensor structures and corresponding ... More
Casimir force for a sphere in front of a plane beyond Proximity Force ApproximationFeb 25 2008For the configuration of a sphere in front of a plane we calculate the first two terms of the asymptotic expansion for small separation of the Casimir force. We consider both Dirichlet and Neumann boundary conditions.
Temperature phase transition and an effective expansion parameter in the O(N)-modelJul 04 2001Dec 03 2001The temperature phase transition in the N-component scalar field theory with spontaneous symmetry breaking is investigated in the perturbative approach. The second Legendre transform is used together with the consideration of the gap equations in the ... More
Phase transition in scalar $φ^4$-theory beyond the super daisy resummationsJun 13 2000The temperature phase transition in scalar $\phi^4(x)$ field theory with spontaneous symmetry breaking is investigated in a partly resummed perturbative approach. The second Legendre transform is used and the resulting gap equation is considered in the ... More
3D Temperature Mapping of Solar Photospheric Fine Structure Using Ca II H FiltergramsOct 15 2012Dec 17 2012Context. The wings of the Ca II H and K lines provide excellent photospheric temperature diagnostics. At the Swedish 1-meter Solar Telescope the blue wing of Ca II H is scanned with a narrowband interference filter mounted on a rotation stage. This provides ... More
On Instanton Contributions to the tau Hadronic WidthNov 28 1994Comparing the results of finite energy and Borel transformed sum rules for the difference of vector and axial vector current correlators we evaluate the instanton contributions to the $\tau$ hadronic width. In contrast to an explicit theoretical calculation ... More
Swaption Prices in HJM model. Nonparametric fitJul 06 2016Aug 01 2016Closed form formulas for swaption prices in HJM model are derived. These formulas are used for nonparametric fit of deterministic forward volatility. It is demonstrated that this formula and non-parametric fit works very well and can be used to identify ... More
Finite-Bandwidth Calculations for Charge Carrier Mobility in Organic CrystalsAug 15 2002Finite-bandwidth effects on the temperature dependence of the mobility of injected carriers in pure organic crystals are explored for a simplifed case of impurity scattering. Temperature-dependent bandwidth effects are discussed briefly through a simplified ... More
Effect of neutrino trapping on the three flavor FFLO phase of QCDNov 12 2005Mar 23 2006We compute the effect of a non-zero lepton chemical potential on the structure of the three flavor Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase of QCD at finite temperature. We show that, as in the BCS case, the lepton chemical potential favors two-species ... More
Satellite galaxies in hydrodynamical simulations of Milky Way sized galaxiesApr 19 2010Apr 27 2010Collisionless simulations of the CDM cosmology predict a plethora of dark matter substructures in the halos of Milky Way sized galaxies, yet the number of known luminous satellites galaxies is very much smaller, a discrepancy that has become known as ... More
Theory of Raman scattering from Leggett's collective mode in a multiband superconductor: Application to MgB$_2$Jun 28 2010In 1966 Leggett used a two-band superconductor to show that a new collective mode could exist at low temperatures, corresponding to a counter-flow of the superconducting condensates in each band. Here, the theory of electronic Raman scattering in a superconductor ... More
Quantum synchronization in disordered superconducting metamaterialsSep 15 2016Oct 23 2016I report a theoretical study of collective coherent quantum-mechanical oscillations in disordered superconducting quantum metamaterials (SQMs), i.e artificially fabricated arrays of interacting qubits (two-levels system). An unavoidable disorder in qubits ... More
Scientific comparison of Mozart and SalieriJul 24 2011I report the results of the internet quiz, where the takers had to tell the music of Mozart from that of Salieri. The average score earned by over eleven thousand quiz-takers is 61%. This suggests that the music of Mozart is of about the same quality ... More
Mathematical proof of fraud in Russian elections unsoundDec 15 2011The Washigton Post had published allegations, that results of Russian elections "violate Gauss's groundbreaking work on statistics." I show that these allegations lack scientific basis.
Berezovsky numberNov 11 2011Berezovsky number is defined analogously to Erdos number. Berezovsky network is investigated.
A scientific inquiry into modern artMar 08 2007Jun 09 2007I report the results of the test, where the takers had to tell true masterpieces of abstract art from the fakes, produced by me. I describe each picture by the fraction of the test takers, who selected it as a masterpiece. When I compare the pictures ... More
Cooperative Robust Estimation with Local Performance GuaranteesMar 16 2016The paper considers the problem of cooperative estimation for a linear uncertain plant observed by a network of communicating sensors. We take a novel approach by treating the filtering problem from the view point of local sensors while the network interconnections ... More
Graphene as a quantum surface with curvature-strain preserving dynamicsNov 10 2010Nov 16 2010We discuss how the curvature and the strain density of the atomic lattice generate the quantization of graphene sheets as well as the dynamics of geometric quasiparticles propagating along the constant curvature/strain levels. The internal kinetic momentum ... More
Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCDMar 19 2016We make predictions for the cross sections of diffractive dijet photoproduction in $pp$, $pA$ and $AA$ ultraperipheral collisions (UPCs) at the LHC during Runs 1 and 2 using next-to-leading perturbative QCD. We find that the resulting cross sections are ... More
Photoproduction of $J/ψ$ and $ψ(2S)$ in proton-proton ultraperipheral collisions at the LHCMay 29 2014Using the framework of leading order perturbative QCD along with the CTEQ6L1 gluon distribution of the proton and high-energy HERA data on the $\gamma p \to J/\psi p$ and $\gamma p \to \psi(2S) p$ cross sections along with the corresponding H1 fit, we ... More
Electromagnetic and strong contributions to dAu soft coherent inelastic diffraction at RHICApr 26 2008We estimate electromagnetic (ultra-peripheral) and strong contributions to dAu soft coherent inelastic diffraction at RHIC, dAu \to X Au. We show that the electromagnetic contribution is the dominant one and that the corresponding cross section is sizable, ... More
Proton-nucleus scattering and cross section fluctuations at RHIC and LHCMay 11 2005May 31 2008We consider high-energy proton-heavy nucleus scattering within the framework of the Glauber-Gribov approximation and taking into account cross section fluctuations. Fixing parameters of the model for cross section fluctuations by the available data, we ... More
Quintessential Inflation on the Brane and the Relic Gravity Wave BackgroundFeb 11 2004Sep 11 2004Quintessential inflation describes a scenario in which both inflation and dark energy (quintessence) are described by the same scalar field. In conventional braneworld models of quintessential inflation gravitational particle production is used to reheat ... More
Self-similarity of negative particle production from the Beam Energy Scan Program at STARSep 22 2015We present the spectra of negative charged particle production in Au+Au collisions from STAR for the first phase of the RHIC Beam Energy Scan Program measured over a wide range of collision energy sqrt s{NN}=7.7-200 GeV, and transverse momentum of produced ... More
Z-scaling at RHICNov 17 2004Nov 22 2004The concept of z-scaling reflecting the general regularities of high-pT particle production is reviewed. Properties of data z-presentation are discussed. New data on high-pT particle spectra obtained at the RHIC are analyzed in the framework of z-presentation. ... More
Multiple photon detection and the localization of light energyDec 31 2013It is shown that probabilities of photon detection can be found on the basis of consideration of the phase space sells filling for an ideal photon gas, which led Bose to the derivation of the Planks law. These probabilities are directly connected to photon ... More
The analogy between optical pulse compression and optical coherence transformationJun 28 2012A new type of an optical interferometer is discussed the phase difference between the interfering beams in which is substantially wavelength dependent. It is shown that the function measured with this device is an integral transform of the field correlation ... More
Charge fluctuations and electric mass in a hot meson gasSep 26 2006Oct 22 2007Net-Charge fluctuations in a hadron gas are studied using an effective hadronic interaction. The emphasis of this work is to investigate the corrections of hadronic interactions to the charge fluctuations of a non-interacting resonance gas. Several methods, ... More
A few remarks on the relationship between elementary particle physics, gravitation and cosmologyJun 05 2016We discuss some current problems in the relationship between elementary particle physics and gravitation, i.e., in the subject investigated by Prof.~K.~P.~Staniukovich half a century ago. Specifically, the inflationary stage of the Universe evolution, ... More
Consciousness and quantum mechanics of macroscopic systemsJul 15 2016Jul 25 2016We propose the quantum mechanical description of complex systems should be performed using two types of causality relation: the ordering relation ($x\prec y$) and the subset relation ($A\subseteq B$). The structures with two ordering operations, called ... More
Langevin equation with scale-dependent noiseJan 10 2004A new wavelet based technique for the perturbative solution of the Langevin equation is proposed. It is shown that for the random force acting in a limited band of scales the proposed method directly leads to a finite result with no renormalization required. ... More
Wavelet based regularization for Euclidean field theoryMay 20 2003Oct 30 2003It is shown that Euclidean field theory with polynomial interaction, can be regularized using the wavelet representation of the fields. The connections between wavelet based regularization and stochastic quantization are considered.
What can biology bestow to quantum mechanics?Jul 08 2000The biological hierarchy and the differences between living and non-living matter are considered from the standpoint of quantum mechanics.
Quantum neural networkJul 03 2001Jul 05 2001It is suggested that a quantum neural network (QNN), a type of artificial neural network, can be built using the principles of quantum information processing. The input and output qubits in the QNN can be implemented by optical modes with different polarization, ... More
Stacked Josephson junction SQUIDSep 21 2001Operation of a Superconducting Quantum Interference Device (SQUID) made of stacked Josephson junctions is analyzed numerically for a variety of junction parameters. Due to a magnetic coupling of junctions in the stack, such a SQUID has certain advantages ... More
Anomalous fluxon properties of layered superconductorsSep 05 2001I review anomalous single and multi-fluxon properties of Stacked Josephson junctions (SJJ's). Throughout the paper I compare analytical, numerical and experimental results both for intrinsic HTSC and artificial low-$T_c$ SJJ's. Table of Contents: 1. Introduction. ... More
Quantum cascade phenomenon in natural atomic superlattices formed in Bi2Sr2CaCu2O8 single crystalsDec 20 2006Natural atomic superlattices are formed in certain strongly anisotropic layered compound. Here we study interlayer transport in single crystals of Bi2Sr2CaCu2O8 cuprates, which represent stacks of atomic scale intrinsic Josephson junctions. A series of ... More
In-plane fluxon in layered superconductors with arbitrary number of layersOct 07 1999Mar 17 2000I derive an approximate analytic solution for the in-plane vortex (fluxon) in layered superconductors and stacked Josephson junctions (SJJ's) with arbitrary number of layers. The validity of the solution is verified by numerical simulation. It is shown ... More
Continuous Constructive Fermionic RenormalizationFeb 20 1998Apr 02 1998We build the two dimensional Gross-Neveu model by a new method which requires neither cluster expansion nor discretization of phase-space. It simply reorganizes the perturbative series in terms of trees. With this method we can for the first time define ... More