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Quasi-stationary states of the quantum system in the driving resonant field are considered without rotating wave approximation. Conditions under which the spontaneous emission could be suppressed in this system are investigated in the…

Quantum Physics · Physics 2017-05-24 I. D. Feranchuk , A. U. Leonau , M. M. Eskandari

In theories with an infinite extra dimension, free particles localized on the brane can leak out to the extra space. We argue that if there were color confinement in the bulk, electrons would be more able to escape than quarks and than…

High Energy Physics - Phenomenology · Physics 2014-11-17 Herman J. Mosquera Cuesta , André Penna-Firme , Abdel Pérez-Lorenzana

Excitons, Coulomb-driven bound states of electrons and holes, are typically composed of integer charges. However, in bilayer systems influenced by charge fractionalization, a more exotic form of interlayer exciton can emerge, where pairing…

Mesoscale and Nanoscale Physics · Physics 2025-01-14 Naiyuan J. Zhang , Ron Q. Nguyen , Navketan Batra , Xiaoxue Liu , Kenji Watanabe , Takashi Taniguchi , D. E. Feldman , J. I. A. Li

The effects of strong Coulomb correlations in dense three-dimensional electron-hole plasmas are studied by means of unbiased direct path integral Monte Carlo simulations. The formation and dissociation of bound states, such as excitons and…

Strongly Correlated Electrons · Physics 2009-11-13 V. S. Filinov , H. Fehske , M. Bonitz , V. E. Fortov , P. Levashov

The influence of the nuclear Coulomb field on transverse spectra of $\pi^+$ and $\pi^-$ measured in $Pb+Pb$ reactions at 158 A GeV has been investigated. Pion trajectories are calculated in the field of an expanding fireball. The observed…

Nuclear Theory · Physics 2008-11-26 H. W. Barz , J. P. Bondorf , J. J. Gaardhøje , H. Heiselberg

We study the formation of dipolar excitons and their superfluidity in a black phosphorene double layer. The analytical expressions for the single dipolar exciton energy spectrum and wave function are obtained. It is predicted that a weakly…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 Oleg L. Berman , Godfrey Gumbs , Roman Ya. Kezerashvili

We calculate semiclassically the emission rate of spin 1/2 particles from charged, nonrotating black holes in D=5,N=8 supergravity. The relevant Dirac equation is solved by the same approximation as in the bosonic case. The resulting…

High Energy Physics - Theory · Physics 2009-10-30 Kazuo Hosomichi

We report the observation of Coulomb blockade in field electron emission (FE) from single-wall carbon nanotubes (SWCNTs), which is manifested as pronounced steps in the FE current-voltage curves and oscillatory variations in the energy…

In this paper, we analytically investigate the noncommutative effects of a charged black hole on holographic superconductors. The effects of charge of the black hole is investigated in our study. Employing the Sturm-Liouville eigenvalue…

High Energy Physics - Theory · Physics 2018-10-31 Diganta Parai , Debabrata Ghorai , Sunandan Gangopadhyay

Recent numerical evidence suggests that a mass spectrum of primordial black holes (PBHs) is produced as a consequence of near critical gravitational collapse. Assuming that these holes formed from the initial density perturbations seeded by…

Astrophysics · Physics 2016-08-25 Graham D. Kribs , Adam K. Leibovich , I. Z. Rothstein

Production of Z bosons in emission processes by neutrinos in the expanding de Sitter universe is studied by using perturbative methods. The total probability and transition rate for the spontaneous emission of a Z boson by a neutrino is…

High Energy Physics - Theory · Physics 2023-11-27 Mihaela-Andreea Baloi , Cosmin Crucean , Diana Dumitrele

We obtain the following analytical formula which describes the dependence of the electric potential of a point-like charge on the distance away from it in the direction of an external magnetic field B: \Phi(z) = e/|z| [ 1-…

High Energy Physics - Phenomenology · Physics 2011-03-02 Bruno Machet , M. I. Vysotsky

Formulated in [Low Temperature Physics/Fizika Nizkikh Temperatur, 41, 482 (2015)] model of hypothetical superconductivity with the source term (external pair potential) in BCS hamiltonian is generalized for a case if electrons interacts via…

Superconductivity · Physics 2015-06-30 Konstantin V. Grigorishin

In this paper, we first extract general uncharged accelerating BTZ black hole solutions and study some of their properties. Our analysis shows that spacetime's asymptotic behavior depends on four parameters: the cosmological constant, mass,…

General Relativity and Quantum Cosmology · Physics 2024-01-11 B. Eslam Panah

Employing unbiased sign-problem-free quantum Monte Carlo, we investigate the effects of long-range Coulomb forces on BEC of bipolarons using a model of bond phonon-modulated electron hopping. In absence of long-range repulsion, this model…

Superconductivity · Physics 2023-12-19 J. Sous , C. Zhang , M. Berciu , D. R. Reichman , B. V. Svistunov , N. V. Prokof'ev , A. J. Millis

A recently proposed method, based on quadrupole and multiplicity fluctuations in heavy ion collisions, is modified in order to take into account distortions due to the Coulomb field. This is particularly interesting for bosons produced in…

Nuclear Theory · Physics 2014-01-16 Hua Zheng , Gianluca Giuliani , Aldo Bonasera

We consider boson stars and black holes in scalar electrodynamics with a V-shaped scalar potential. The boson stars come in two types, having either ball-like or shell-like charge density. We analyze the properties of these solutions and…

General Relativity and Quantum Cosmology · Physics 2010-11-22 Burkhard Kleihaus , Jutta Kunz , Claus Laemmerzahl , Meike List

Many of the fundamental optical and electronic properties of atomically thin transition metal dichalcogenides are dominated by strong Coulomb interactions between electrons and holes, forming tightly bound atom-like excitons. Here, we…

Superconducting excitations --Bogoliubov quasiparticles -- are the quantum mechanical mixture of negatively charged electron (-e) and positively charged hole (+e). Depending on the applied voltage bias in STM one can sample the particle and…

Superconductivity · Physics 2009-11-13 K. Fujita , Ilya Grigorenko , J. Lee , M. Wang , Jian Xin Zhu , J. C. Davis , H. Eisaki , S. Uchida , Alexander V. Balatsky

In this paper, we investigate the influence of the angular momentum of a charged particle around non-extremal and extremal Einstein-Maxwell-Dilaton-Axion black holes on the Lyapunov exponent. The angular momentum's ranges and spatial…

High Energy Physics - Theory · Physics 2022-12-06 Chengye Yu , Deyou Chen , Chuanhong Gao
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