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The electronic distribution in devices with sufficiently small diemnsions may not be in thermal equilibrium with their surroundings. Systems where the occupancies of electronic states are solely determined by tunneling processes are…

介观与纳米尺度物理 · 物理学 2016-08-17 N. García , F. Guinea

We investigate the three-dimensional structure of the so-called ``200-pc expanding molecular ring" in the Galactic Center by analyzing (b, Vlsr) diagrams of the 13CO(J=1-0) line emission from the Bell-Telephone Laboratory survey. We show…

天体物理学 · 物理学 2007-05-23 Yoshiaki Sofue

Consider anomalous energy spread in solid phases, i.e., $MSD= \int (x -{\langle x \rangle}_E)^2 \rho_E(x,t)dx \propto t^{\beta}$, as induced by a small initial excess energy perturbation distribution $\rho_{E}(x,t=0)$ away from equilibrium.…

统计力学 · 物理学 2014-02-03 Sha Liu , Peter Hänggi , Nianbei Li , Jie Ren , Baowen Li

A technique is developed which allows for the detailed mapping of the electronic wave function in two-dimensional electron gases with low-temperature mobilities up to 15E6 cm^2/Vs. Thin ("delta") layers of aluminium are placed into the…

介观与纳米尺度物理 · 物理学 2015-12-09 Christian Reichl , Werner Dietsche , Thomas Tschirky , Timo Hyart , Werner Wegscheider

We conduct two-dimensional particle-in-cell simulations to investigate the scattering of electron heat flux by self-generated oblique electromagnetic waves. The heat flux is modeled as a bi-kappa distribution with a T_parallel > T_perp…

太阳与恒星天体物理 · 物理学 2023-07-12 Hanqing Ma , James F. Drake , Marc Swisdak

In a previous paper (cond-mat/0106554) we showed the existence of two new zero-temperature exponents (\lambda and \theta') in two dimensional Gaussian spin glasses. Here we introduce a novel low-temperature expansion for spin glasses…

无序系统与神经网络 · 物理学 2007-05-23 M. Picco , F. Ritort , M. Sales

We report direct experimental evidence that the insulating phase of a disordered, yet strongly interacting two-dimensional electron system (2DES) becomes unstable at low temperatures. As the temperature decreases, a transition from…

介观与纳米尺度物理 · 物理学 2008-01-15 M. Baenninger , A. Ghosh , M. Pepper , H. E. Beere , I. Farrer , D. A. Ritchie

A theory of electromagnetic (EM) wave scattering by many small particles of an arbitrary shape is developed. The particles are perfectly conducting or impedance. For a small impedance particle of an arbitrary shape an explicit analytical…

数学物理 · 物理学 2016-01-12 A. G. Ramm

Objects composed of lattice defects exist within a one-dimensional tight-binding model whose electron reflection coefficient in the low-energy case is equal to zero. Localized states are absent as well. The effective mass concept explains…

其他凝聚态物理 · 物理学 2007-05-23 A. A. Gorbatsevich

An extreme case of electron shock drift acceleration in low Mach number collisionless shocks is investigated as a plausible mechanism of initial acceleration of relativistic electrons in large-scale shocks in galaxy clusters where upstream…

高能天体物理现象 · 物理学 2015-05-30 Shuichi Matsukiyo , Yutaka Ohira , Ryo Yamazaki , Takayuki Umeda

We report single layer resistivities of 2-dimensional electron and hole gases in an electron-hole bilayer with a 10nm barrier. In a regime where the interlayer interaction is stronger than the intralayer interaction, we find that an…

强关联电子 · 物理学 2009-10-28 A. F. Croxall , K. Das Gupta , C. A. Nicoll , H. E. Beere , I. Farrer , D. A. Ritchie , M. Pepper

With the aim of looking for signatures of deconfinement, the poles and the spectral function of the Landau-gauge gluon propagator are investigated at one loop, vanishing spatial momentum and finite temperature within the framework of the…

高能物理 - 理论 · 物理学 2025-11-11 Giorgio Comitini

This paper presents the results of a study of the response of a test CMOS sensor with a radiation tolerant pixel cell design to 80 keV and 100 keV electrons. The point spread function is measured to be (13.0+/- 1.7) microns at 100 keV and…

仪器与探测器 · 物理学 2009-06-25 Marco Battaglia , Devis Contarato , Peter Denes , Dionisio Doering , Velimir Radmilovic

The thermal mass spectra of scalar and pseudo scalar mesons are studied in an IR-improved soft-wall AdS/QCD model. The Reissner-Nordstrom AdS black hole metric is introduced to describe both the finite temperature and density effects. The…

高能物理 - 唯象学 · 物理学 2013-10-08 Ling-Xiao Cui , Yue-Liang Wu

We perform fully-kinetic particle-in-cell simulations of an hot plasma that expands radially in a cylindrical geometry. The aim of the paper is to study the consequent development of the electron temperature anisotropy in an expanding…

等离子体物理 · 物理学 2010-02-12 Enrico Camporeale , David Burgess

We investigate the energy exchanges along an electronic quantum channel realized in the integer quantum Hall regime at filling factor $\nu_L=2$. One of the two edge channels is driven out-of-equilibrium and the resulting electronic energy…

介观与纳米尺度物理 · 物理学 2015-03-13 H. le Sueur , C. Altimiras , U. Gennser , A. Cavanna , D. Mailly , F. Pierre

The thermal corrections to the propagator of a loosely bound charm-meson molecule in a pion gas are calculated to next-to-leading order in the heavy-meson expansion using a zero-range effective field theory. Ultraviolet divergences in the…

高能物理 - 唯象学 · 物理学 2023-09-13 Eric Braaten , Li-Ping He , Kevin Ingles , Jun Jiang

Heating of charged particles via collisionless shocks, while ubiquitous in the universe, is an intriguing yet puzzling plasma phenomenon. One outstanding question is how electrons and ions approach an equilibrium after they were heated to…

Electromagnetic (EM) waves/disturbances are typically the best means to understand and analyze an ionized medium like plasma. However, the propagation of electromagnetic waves with frequency lower than the plasma frequency is prohibited by…

等离子体物理 · 物理学 2020-02-25 Sharad Kumar Yadav , Ratan Kumar Bera , Deepa Verma , Amita Das , Predhiman Kaw

We study the properties of massless and massive quarks coupled with a scalar and pseudoscalar boson at finite temperature in Yukawa models at the one-loop order. The behavior of the spectral function and the pole structure of the propagator…

高能物理 - 唯象学 · 物理学 2008-11-26 Masakiyo Kitazawa , Teiji Kunihiro , Kazuya Mitsutani , Yukio Nemoto
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