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相关论文: Antiphased Cyclotron-Magnetoplasma Mode in a Quant…

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We present a theory predicting how the linear magnetotransport of a two-dimensional electron gas is modified by a passive electromagnetic cavity resonator where no real photons are injected nor created. For a cavity photon mode with…

介观与纳米尺度物理 · 物理学 2018-11-06 Nicola Bartolo , Cristiano Ciuti

We predict the existence of new nonlinear electromagnetic wave modes in pair plasmas. The plasma may be either non-magnetized or immersed in an external magnetic field. The existence of these modes depends on the interaction of an intense…

等离子体物理 · 物理学 2007-05-23 Mattias Marklund , Padma K. Shukla , Gert Brodin , Lennart Stenflo

A simulation study of the magnetic electron drift vortex (MEDV) mode turbulence in a magnetoplasma in the presence of inhomogeneities in the plasma temperature and density, as well as in the external magnetic field, is presented. The study…

等离子体物理 · 物理学 2015-05-13 Dastgeer Shaikh , B Eliasson , P K Shukla

We calculate the single-particle states of a two-dimensional electron gas (2DEG) in a perpendicular quantizing magnetic field, which is periodic in one direction of the electron layer. We discuss the modulation of the electron density in…

介观与纳米尺度物理 · 物理学 2009-10-30 Ulrich J. Gossmann , Andrei Manolescu , Rolf R. Gerhardts

The electronic structure of a 2D gas subjected to a tilted magnetic field, with a strong component parallel to the GaAs/AlGaAs interface and a weak component oriented perpendicularly, is studied theoretically. It is shown that the parallel…

凝聚态物理 · 物理学 2009-10-22 L. Smrcka , T. Jungwirth

System consisting of a number of trapped atoms evolving under the influence of external inhomogenous magnetic field undergoes spin dephasing: classically, since each atom feels different field along its trajectory, the spin rotation rates…

量子物理 · 物理学 2020-02-05 Konrad Szymański , Krzysztof Pawłowski

When applying a red-detuned retro-reflected laser beam to a large cloud of cold atoms, we observe the spontaneous formation of 2D structures in the transverse plane corresponding to high contrast spatial modulations of both light field and…

斑图形成与孤子 · 物理学 2018-06-27 Guillaume Labeyrie , Ivor Kresic , Gordon R. M. Robb , Gian-Luca Oppo , Robin Kaiser , Thorsten Ackemann

Magnetometry is a powerful technique for the non-invasive study of biological and physical systems. A key challenge lies in the simultaneous optimization of magnetic field sensitivity and maximum field range. In interferometry-based…

We study the nonequilibrium dynamics of an ultracold, non-degenerate dipolar gas of $^{164}$Dy atoms in a cylindrically symmetric harmonic trap. To do so, we investigate the normal modes and linear response of the gas when driven by means…

量子气体 · 物理学 2020-10-07 Reuben R. W. Wang , Andrew G. Sykes , John L. Bohn

We investigate the electronic structure and properties of atoms exposed to a magnetic quadrupole field. The spin-spatial as well as generalized time reversal symmetries are established and shown to lead to a two-fold degeneracy of the…

原子物理 · 物理学 2007-05-23 Igor Lesanovsky , Joerg Schmiedmayer , Peter Schmelcher

Electrostatic turbulence in weakly collisional, magnetized plasma can be interpreted as a cascade of entropy in phase space, which is proposed as a universal mechanism for dissipation of energy in magnetized plasma turbulence. When the…

等离子体物理 · 物理学 2013-05-29 T. Tatsuno , W. Dorland , A. A. Schekochihin , G. G. Plunk , M. Barnes , S. C. Cowley , G. G. Howes

We consider a two-component Bose-Einstein condensate, which contains atoms with magnetic dipole moments aligned along the $z$ direction (labeled as component 1) and nonmagnetic atoms (labeled as component 2). The problem is studied by means…

量子气体 · 物理学 2011-08-08 Kui-Tian Xi , Jinbin Li , Da-Ning Shi

The matrix product state (MPS) is utilized to study the ground state properties and quantum phase transitions (QPTs) of the one-dimensional quantum compass model (QCM). The MPS wavefunctions are argued to be very efficient descriptions of…

强关联电子 · 物理学 2012-06-05 Guang-Hua Liu , Wei Li , Wen-Long You , Guang-Shan Tian , Gang Su

Active matter has been intensely studied for its wealth of intriguing properties such as collective motion, motility-induced phase separation (MIPS), and giant fluctuations away from criticality. However, the precise connection of active…

统计力学 · 物理学 2019-04-17 Juliane U. Klamser , Sebastian C. Kapfer , Werner Krauth

A new magnetic phase with $T_C = 72 \ \mathrm K$ was obtained by exposing the three-dimensional $\mathrm{\{ [Mn^{II}(H_2O)_2]_2[Nb^{IV}(CN)_8] \cdot 4H_2O \} _n}$ coordination ferrimagnet ($T_C = 49 \ \mathrm K$) to air, oxygen, nitrogen,…

材料科学 · 物理学 2024-02-29 Dominik Czernia , Piotr Konieczny , Marcin Perzanowski , Beata Nowicka , Dawid Pinkowicz

In the fractional quantum Hall effect regime we measure diagonal ($\rho_{xx}$) and Hall ($\rho_{xy}$) magnetoresistivity tensor components of two-dimensional electron system (2DES) in gated GaAs/Al$_{x}$Ga$_{1-x}$As heterojunctions,…

介观与纳米尺度物理 · 物理学 2009-11-11 S. S. Murzin , S. I. Dorozhkin , G. E. Tsydynzhapov , V. N. Zverev

A first order phase transition between a BCS phase and an insulating Mott phase for a gas of spatially separated electrons and holes with tunable Coulomb interaction and variable density is predicted. In the framework of a BCS-like…

介观与纳米尺度物理 · 物理学 2015-04-09 Oleg L. Berman , Roman Ya. Kezerashvili , Klaus Ziegler

A charged particle in the presence of a magnetic field is studied in the position dependent operator formalism. Instead of a quantum harmonic oscillator, the solution of the resulting Schr\"odinger-like equation is the one for the Morse…

介观与纳米尺度物理 · 物理学 2021-02-24 R. N. Costa Filho , S. F. S. Oliveira , V. Aguiar

The problem of the linear microtearing mode in a slab magnetised plasma, and its connection to kinetic reconnecting modes, is addressed. Electrons are described using a novel hybrid fluid-kinetic model that captures electron heating, ions…

等离子体物理 · 物理学 2015-06-23 A Zocco , N F Loureiro , D Dickinson , R Numata , C M Roach

It was recently proposed that the electron-frame dissipation measure, the energy transfer from the electromagnetic field to plasmas in the electron's rest frame, identifies the dissipation region of collisionless magnetic reconnection…

太阳与恒星天体物理 · 物理学 2015-03-31 Seiji Zenitani , Michael Hesse , Alex Klimas , Carrie Black , Masha Kuznetsova