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The ability to manipulate plasmons is driving new developments in electronics, optics, sensing, energy, and medicine. Despite the massive momentum of experimental research in this direction, a predictive quantum-mechanical framework for…

Materials Science · Physics 2016-10-12 Fabio Caruso , Feliciano Giustino

Collective, low-energy excitations in quasi-two-dimensional d-wave superconductors are analyzed. While the long-range Coulomb interaction shifts the charge-density-wave and phase modes up to the plasma energy, the spin-density-wave…

Superconductivity · Physics 2009-10-30 M. I. Salkola , J. R. Schrieffer

Suprathermal electrons and inertial drifting electrons, so called electron beam, are crucial to the nonlinear dynamics of electrostatic solitary waves observed in several astrophysical plasmas. In this paper, the propagation of…

Plasma Physics · Physics 2018-04-27 Ashkbiz Danehkar

The interaction of high intensity laser radiation with underdense plasma may lead to the formation of electron vortices. Though being quasistationary on an electron timescales, these structures tend to expand on a proton timescale due to…

Plasma Physics · Physics 2016-10-12 K. V. Lezhnin , F. F. Kamenets , T. Zh. Esirkepov , S. V. Bulanov , Y. Gu , S. Weber , G. Korn

We consider a cold two-species atomic Fermi gas confined in a trap. We combine the Hermitian coupling between the states (we assume them to be the states with different spins) with the Cooper pairing of atoms with these different spins.…

Quantum Gases · Physics 2017-03-10 E. A. Ayryan , K. G. Petrosyan , A. H. Gevorgyan , N. Sh. Izmailian , K. B. Oganesyan

A new nonlinear electromagnetic wave mode in a plasma is reported. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a plasma, where quantum electrodynamical photon--photon scattering is…

Plasma Physics · Physics 2015-06-26 Lennart Stenflo , Gert Brodin , Mattias Marklund , Padma K. Shukla

We propose a simple phenomenological theory for quantum tunneling of Cooper pairs based on their boson like nature. Thus it applies in the absence of quasiparticle excitations (fermions), and should be suitable for boson like particles at…

Superconductivity · Physics 2020-09-15 Edgar J. Patiño , Daniel Lozano-Gómez

We consider possible superconducting instabilities in a two-dimensional Fermi system with short-ranged repulsive interactions between electrons. The possibility of an unusual superconducting paring due to the Kohn-Luttinger mechanism is…

Superconductivity · Physics 2009-11-07 Victor Galitski , S. Das Sarma

The process of neutrino-pair radiation due to formation and breaking of Cooper pairs of protons in superconducting cores of neutron stars is considered with taking into account of the electromagnetic coupling of protons to ambient…

High Energy Physics - Phenomenology · Physics 2009-10-31 L. B. Leinson

In this work, a question is tackled concerning the formation of a superconducting condensate in an earlier proposed model of "elastic jelly", in which phonons of the valent skeleton play the part of initiating ones. It was shown that in…

Superconductivity · Physics 2007-05-23 I. M. Yurin , V. B. Kalinin

Based on the quantum two-body problem introduced in [arXiv:1604.06693] we consider bound pairs of electrons moving on the positive half-line. The analysis is motivated by the ground-breaking work of Cooper who identified the pairing of…

Mathematical Physics · Physics 2019-03-13 Joachim Kerner

We analyze theoretically the oscillations that the magnetoresistivity of two-dimensional electron systems present when a high intensity direct current is applied. In the model presented here we suggest that a plasma wave is excited in the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Jesus Inarrea

An analytical model for oscillating pair creation above the pulsar polar cap is presented in which the parallel electric field is treated as a large amplitude, superluminal, electrostatic wave. An exact formalism for such wave is derived in…

Astrophysics · Physics 2009-11-13 Q. Luo , D. B. Melrose

We demonstrate Cooper-pair's drastic enhancement effect on band-to-band radiative recombination in a semiconductor. Electron Cooper pairs injected from a superconducting electrode into an active layer by the proximity effect recombine with…

Other Condensed Matter · Physics 2013-07-05 H. Sasakura , S. Kuramitsu , Y. Hayashi , K. Tanaka , T. Akazaki , E. Hanamura , R. Inoue , H. Takayanagi , Y. Asano , I. Suemune

The process of electron-positron pair creation and oscillation in uniform electric field is studied, taking into account Pauli exclusion principle. Generally, we find that pair creation is suppressed, hence coherent oscillations occur on…

Plasma Physics · Physics 2023-07-18 Mikalai Prakapenia , Gregory Vereshchagin

A short review of the history and the contemporary numerical calculations of the operation of an electronic device for generation of electric oscillations by negative differential conductivity of a supercooled below the critical temperature…

Superconductivity · Physics 2020-06-26 Todor M. Mishonov , Aleksander P. Petkov , Victor I. Danchev , Albert M. Varonov

We study analytically and numerically dynamics and eigenstates of two electrons with Coulomb repulsion on a tight-binding lattice in one and two dimensions. The total energy and momentum of electrons are conserved and we show that for a…

Superconductivity · Physics 2020-06-18 Klaus M. Frahm , Dima L. Shepelyansky

In this paper we investigate the resonant electron-plasmon interactions in a drifting electron gas of arbitrary degeneracy. The kinetic corrected quantum hydrodyanmic model is transformed into the effective Schr\"{o}dinger-Poisson model and…

Plasma Physics · Physics 2021-02-24 M. Akbari-Moghanjoughi

We consider the low energy collective monopole modes of a trapped weakly interacting atomic Fermi gas in the collisionless regime. The spectrum is calculated for varying coupling strength and chemical potential. Using an effective…

Condensed Matter · Physics 2009-11-07 G. M. Bruun

Coulomb repulsion between two moving electrons loses its spherical symmetry due to relativistic effects. In presence of a uniform positive ion background this asymmetry uncovers an angular dependent attraction potential in the direction of…

Superconductivity · Physics 2007-05-23 F. Raissi