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相关论文: Berry's phase with quantized field driving: effect…

200 篇论文

We investigate the decoherence effect of a bosonic bath on the Berry phase of a spin-1/2 in a time-dependent magnetic field, without making the Markovian approximation. A two-cycle process resulting in a pure Berry phase is considered. The…

量子物理 · 物理学 2015-06-16 Xin Li , Yu Shi

We consider a system with spin-orbit coupling and derive equations of motion which include the effects of Berry curvatures. We apply these equations to investigate the dynamics of particles with equal Rashba-Dresselhaus spin-orbit coupling…

量子气体 · 物理学 2017-04-19 J. Armaitis , J. Ruseckas , E. Anisimovas

The geometric phase has been proposed as a candidate for noise resilient coherent manipulation of fragile quantum systems. Since it is determined only by the path of the quantum state, the presence of noise fluctuations affects the…

量子物理 · 物理学 2010-04-22 S. Filipp , J. Klepp , Y. Hasegawa , C. Plonka-Spehr , U. Schmidt , P. Geltenbort , H. Rauch

Recent experiments suggest quantum interference effects in the Coulomb drag of double-layer graphene systems. By accounting for correlated interlayer impurity scattering under a weak magnetic field, our theoretical results reveal drag…

介观与纳米尺度物理 · 物理学 2024-07-12 Jianghui Pan , Lijun Zhu , Xiaoqiang Liu , Lin Li , Changgan Zeng , Ji Feng

We investigate the nuclear dynamics near a real-valued conical intersection that is perturbed by a complex-valued spin-orbit coupling. For a model Hamiltonian with two outgoing channels, we find that even a small spin-orbit coupling can…

化学物理 · 物理学 2020-08-07 Yanze Wu , Joseph E. Subotnik

The correlation and fluctuation of both entangled electrons and spin-polarized pairs affected by two rotating magnetic fields in a setup proposed by J. Carlos Egues etc. (Phys. Rev. Lett. {\bf 89}(2002) 176401) are studied theoretically by…

介观与纳米尺度物理 · 物理学 2007-05-23 Xuean Zhao , Hui Zhao , Pei Wang , You-Quan Li

We introduce the perturbative aspects of noncommutative quantum mechanics. Then we study the Berry's phase in the framework of noncommutative quantum mechanics. The results show deviations from the usual quantum mechanics which depend on…

高能物理 - 理论 · 物理学 2009-11-07 S. A. Alavi

Berry's connection is computed in the USp(2k) matrix model. In T dualized quantum mechanics, the Berry phase exhibits a residual interaction taking place at a distance m_(f) from the orientifold surface via the integration of the fermions…

高能物理 - 理论 · 物理学 2009-10-31 H. Itoyama , T. Matsuo

Hole-spins localized in semiconductor structures, such as quantum dots or defects, serve to the realization of efficient gate-tunable solid-state quantum bits. Here we study two electrically driven spin $3/2$ holes coupled to the…

介观与纳米尺度物理 · 物理学 2021-07-14 Marcin M. Wysokiński , Marcin Płodzień , Mircea Trif

We consider a two-level system coupled to a highly non-Markovian environment when the coupling axis rotates with time. The environment may be quantum (for example a bosonic bath or a spin bath) or classical (such as classical noise). We…

量子物理 · 物理学 2010-04-15 Robert S. Whitney

The Berry phase for a variety of systems comprising of two angular momenta is discussed. These include the electron and proton in the ground state of the hydrogen atom (taking into account the hyperfine interaction), the positronium atom,…

量子物理 · 物理学 2011-04-29 K. J. B. Ghosh , D. De Munshi , B. Dutta-Roy

A binary mixtures of Bose-Einstein condensate structures exhibit an incredible richness in terms of holding different kinds of phases. Depending on the ratio of the inter- and intra-atomic interactions, the transition from mixed to…

量子气体 · 物理学 2020-04-22 Mehmet Günay

We consider a system where localized bound electron pairs form an array of "Andreev"-like scattering centers and are coupled to a fermionic subsystem of uncorrelated electrons. By means of a path-integral approach, which describes the bound…

超导电性 · 物理学 2009-11-10 M. Cuoco , J. Ranninger

The energy eigenstates of a spin$-\frac{1}{2}$ particle in a magnetic field confined to a plane, define a planar spin. If the particle moves adiabatically around a loop in this plane, it picks up a topological Berry phase that can only be…

量子物理 · 物理学 2017-11-22 Erik Sjöqvist

The standard quantum mechanical electronic state calculations for molecules and solids uses the Schroedinger representation where the momentum conjugate to the coordinate $q_r$ is given by $-hbar {partial over {partial q_r}}$. This…

超导电性 · 物理学 2022-09-07 Hiroyasu Koizumi

Interference effects between Berry phase factors in spin tunneling systems have been discussed in recent Letters by Loss, DiVincenzo and Grinstein and von Delft and Henley. This Comment points out that Berry phases in spin tunneling are…

凝聚态物理 · 物理学 2009-10-22 Assa Auerbach

We demonstrate that Berry phases may greatly affect the dynamics of spin-orbit coupled Bose-Einstein condensates. The effective model Hamiltonian under consideration is shown to be equivalent to the Exe Jahn-Teller model first introduced in…

量子物理 · 物理学 2015-05-13 Jonas Larson , Erik Sjoqvist

We investigate the phase accumulated by a charged particle in an extended quantum state as it encircles one or more magnetic fluxons, each carrying half a flux unit. A simple, essentially topological analysis reveals an interplay between…

高能物理 - 理论 · 物理学 2014-11-18 Y. Aharonov , S. Coleman , A. S. Goldhaber , S. Nussinov , S. Popescu , B. Reznik , D. Rohrlich , L. Vaidman

It is well-known that Dirac particles gain geometric phase, namely Berry phase, while moving in an electromagnetic field. Researchers have already shown covariant formalism for the Berry connection due to an electromagnetic field. A similar…

广义相对论与量子宇宙学 · 物理学 2022-12-12 Achal Kumar , Banibrata Mukhopadhyay

We examine the photonic spin Hall effect (SHE) in a graphene-substrate system with the presence of external magnetic field. In the quantum Hall regime, we demonstrate that the in-plane and transverse spin-dependent splittings in photonic…

光学 · 物理学 2017-04-21 Liang Cai , Mengxia Liu , Shizhen Chen , Yachao Liu , Weixing Shu , Hailu Luo , Shuangchun Wen