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相关论文: Dynamically Induced Zeeman Effect in Massless QED

200 篇论文

A novel magnetic interference effect is proposed for a neutral, but polarizable exciton in a quantum ring with a finite width. The magnetic interference effect originates from the nonzero dipole moment in the exciton. The ground state of…

介观与纳米尺度物理 · 物理学 2009-11-07 S. E. Ulloa , A. O. Govorov , A. V. Kalameitsev , R. Warburton , K. Karrai

Magnetic-field-induced phase transitions in the integer quantum Hall effect are studied under the formation of paired Landau bands arising from Zeeman spin splitting. By investigating features of modular symmetry, we showed that…

介观与纳米尺度物理 · 物理学 2007-05-23 D. R. Hang , R. B. Dunford , Gil-Ho Kim , H. D. Yeh , C. F. Huang , D. A. Ritchie , I. Farrer , Y. W. Zhang , C. -T. Liang , Y. H. Chang

The effect of non-commutativity on electromagnetic waves violates Lorentz invariance: in the presence of a background magnetic induction field b, the velocity for propagation transverse to b differs from c, while propagation along b is…

高能物理 - 理论 · 物理学 2009-11-07 Z. Guralnik , R. Jackiw , S. Y. Pi , A. P. Polychronakos

We present a numerical study of the fermion-induced effective action in the presence of a static inhomogeneous magnetic field for both 3+1 and 2+1 dimensional QED using a novel approach. This approach is appropriate for cylindrically…

高能物理 - 理论 · 物理学 2009-10-31 Pavlos Pasipoularides

We examine the conditions necessary for the presence of localized magnetic moments on adatoms with inner shell electrons in graphene. We show that the low density of states at the Dirac point, and the anomalous broadening of the adatom…

强关联电子 · 物理学 2008-07-13 Bruno Uchoa , Valeri N. Kotov , N. M. R. Peres , A. H. Castro Neto

A lattice of particles with dipolar magnetic moments is considered under the presence of quadratic Zeeman effect. Two types of this effect are taken into account, the effect due to an external nonresonant magnetic field and the effect…

其他凝聚态物理 · 物理学 2018-08-01 V. I. Yukalov , E. P. Yukalova

Graphene properties can be manipulated by a periodic potential. Based on the tight-binding model, we study graphene under a one-dimensional (1D) modulated magnetic field which contains both a uniform and a staggered component. New chiral…

强关联电子 · 物理学 2011-01-18 Lei Xu , Jin An , Chang-De Gong

We study the magnetic-field effect on a Kondo insulator by exploiting the periodic Anderson model with the Zeeman term. The analysis using dynamical mean field theory combined with quantum Monte Carlo simulations determines the detailed…

强关联电子 · 物理学 2009-11-10 Takuma Ohashi , Akihisa Koga , Sei-ichiro Suga , Norio Kawakami

We study QED in external electromagnetic fields using methods developed for simulating lattice QCD. Our first project is to simulate QED in a constant (in space and time) external magnetic field on a euclidean space-time lattice using the…

高能物理 - 格点 · 物理学 2021-11-04 D. K. Sinclair , J. B. Kogut

We investigate the helium dimer in strong magnetic fields, focusing on the spectrum of low-lying electronic states and their dissociation curves, at the full configuration-interaction level of theory. To address the loss of cylindrical…

化学物理 · 物理学 2020-12-02 Jon Austad , Alex Borgoo , Erik I. Tellgren , Trygve Helgaker

The Zeeman effect is an important topic in atomic spectroscopy. The induced change in transition frequencies and amplitudes finds applications in the Earth-field-range magnetometry. At intermediate magnetic field amplitude $B\sim B_0 =…

原子物理 · 物理学 2023-11-23 Armen Sargsyan , Emmanuel Klinger , Ara Tonoyan , David Sarkisyan

We report on magnetic field dependence of half-integer quantized conductance plateaus (HQPs) in InAs quantum wires. We observed HQPs at zero applied magnetic field in InAs quantum wires fabricated from a high-quality InAs quantum well. The…

介观与纳米尺度物理 · 物理学 2017-11-15 Sadashige Matsuo , Hiroshi Kamata , Shoji Baba , Russell S. Deacon , Javad Shabani , Christopher J. Palmstrøm , Seigo Tarucha

In this paper we have investigated the dynamics of a damped harmonic oscillator in the presence of an electromagnetic field. The transients for the two dimensional harmonic oscillator imply about the modulation of the frequency of the…

经典物理 · 物理学 2021-07-29 L. R. Rahul Biswas , Joydip Das , Bidhan Chandra Bag

Developments in the physics of 2D electron systems during the last decade have revealed a new class of nonequilibrium phenomena in the presence of a moderately strong magnetic field. The hallmark of these phenomena is magnetoresistance…

介观与纳米尺度物理 · 物理学 2013-02-19 I. A. Dmitriev , A. D. Mirlin , D. G. Polyakov , M. A. Zudov

A systematic study of the energetics of electrons in an interface in a magnetic field is reported with exact analytical calculations based on a Landau Level (LL) picture, by serious consideration of the finite thickness of the Quantum Well…

介观与纳米尺度物理 · 物理学 2013-05-29 Georgios Konstantinou , Konstantinos Moulopoulos

We demonstrate experimentally that in an asymmetric quantum well in presence of quantizing magnetic field tilted in XZ plane, confining potential V(z) lifts Landau level degeneracy related to position of the centers of electron cyclotron…

介观与纳米尺度物理 · 物理学 2010-04-14 S. A. Emelyanov

The electron magnetohydrodynamics (MHD) contains a highly nonlinear Hall term with an interesting structure. Exploring the Hall nonlinear structure, we investigate possible phenomena of finite time blow up for the electron MHD with a…

偏微分方程分析 · 数学 2025-03-20 Mimi Dai

Quantum electrodynamics (QED) effects may be included in physical processes of magnetar and pulsar magnetospheres with strong magnetic fields. Involving the quantum corrections, the Maxwell electrodynamics is modified to non-linear…

高能天体物理现象 · 物理学 2020-04-15 Huiquan Li , Xiaolin Yang , Jiancheng Wang

Given the anomalous magnetic moments of electrons and positrons in the one-loop approximation, we calculate the exact Lagrangian of an intense constant magnetic field that replaces the Heisenberg-Euler Lagrangian in traditional quantum…

高能物理 - 理论 · 物理学 2009-11-10 V. N. Rodionov

We study the appearance of induced parity-violating magnetic moment, in the presence of external magnetic fields, for even-number of fermion species coupled to dynamical fields in three dimensions. Specifically, we use a SU(2)xU(1) gauge…

高能物理 - 理论 · 物理学 2009-10-31 N. E. Mavromatos , A. Momen