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相关论文: Observing the Berry phase in diffusive conductors:…

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We study Berry phase effects on conductance properties of diffusive mesoscopic conductors, which are caused by an electron spin moving through an orientationally inhomogeneous magnetic field. Extending previous work, we start with an exact,…

介观与纳米尺度物理 · 物理学 2009-10-31 Hans-Andreas Engel , Daniel Loss

We address the controversy concerning the necessary conditions for the observation of Berry phases in disordered mesoscopic conductors. For this purpose we calculate the spin-dependent conductance of disordered two-dimensional structures in…

介观与纳米尺度物理 · 物理学 2009-11-10 Markus Popp , Diego Frustaglia , Klaus Richter

An electron spin moving adiabatically in a strong, spatially non-uniform magnetic field accumulates a geometric phase or Berry phase, which might be observable as a conductance oscillation in a mesoscopic ring. Two contradicting theories…

介观与纳米尺度物理 · 物理学 2007-05-23 S. A. van Langen , H. P. A. Knops , J. C. J. Paasschens , C. W. J. Beenakker

The adiabatic theorem states that if we prepare a quantum system in one of the instantaneous eigenstates then the quantum number is an adiabatic invariant and the state at a later time is equivalent to the instantaneous eigenstate at that…

量子物理 · 物理学 2007-05-23 A. K. Pati , A. K. Rajagopal

The Berry phases for coherent states and squeezed coherent states of Landau levels are calculated. Coherent states of Landau levels are interpreted as a result of a magnetic flux moved adiabatically from infinity to a finite place on the…

量子物理 · 物理学 2007-06-15 Wen-Long Yang , Jing-Ling Chen

The monopole-like singularity of Berry's adiabatic phase in momentum space and associated anomalous Poisson brackets have been recently discussed in various fields. With the help of the results of an exactly solvable version of Berry's…

高能物理 - 理论 · 物理学 2020-04-22 Shinichi Deguchi , Kazuo Fujikawa

We consider the electron transport through a single molecule magnet transistor in the presence of a local transverse magnetic field and ac-driven gate voltage. We calculate the conductance as a function of the electron energy and transverse…

介观与纳米尺度物理 · 物理学 2026-05-19 Gabriel Gonzalez

We consider area-preserving deformations of the plane, acting on electronic wavefunctions through "quantomorphisms" that change both the underlying metric and the confining potential. We show that adiabatic sequences of such transformations…

介观与纳米尺度物理 · 物理学 2023-10-11 Blagoje Oblak , Benoit Estienne

In this reply, we show that the adiabatic theorem would break down in the weak coupling limit, and the definition for the subsystem geometric phase is well defined.

量子物理 · 物理学 2007-09-27 X. X. Yi , L. C. Wang , T. Y. Zheng

We consider an all in-fiber optical modulator based on a ring resonator configuration. The case of adiabatic to nonadiabatic transition is considered, where the geometrical (Berry) phase acquired in a round trip along the ring changes…

量子物理 · 物理学 2007-05-23 Eyal Buks

With a counter-diabatic field supplemented to the reference control field, the `shortcut to adiabaticiy' (STA) protocol is implemented in a superconducting phase qubit. The Berry phase measured in a short time scale is in good agreement…

量子物理 · 物理学 2017-05-24 Zhenxing Zhang , Tenghui Wang , Liang Xiang , Jiadong Yao , Jianlan Wu , Yi Yin

Berry phases occur when a system adiabatically evolves along a closed curve in parameter space. This tutorial-like article focuses on Berry phases accumulated in real space. In particular, we consider the situation where an electron…

强关联电子 · 物理学 2014-05-06 Karin Everschor-Sitte , Matthias Sitte

We explain the experimental data on the magnetization of $LaRhIn_5$ recently published by R. G. Goodrich et al. in Phys. Rev.Lett. {\bf 89}, 026401 (2002). We show that the magnetization of a small electron group associated with a…

材料科学 · 物理学 2009-11-10 G. P. Mikitik , Yu. V. Sharlai

We develop a theory of Berry phase effect in anomalous transport in ferromagnets driven by statistical forces such as the gradient of temperature or chemical potential. Here a charge Hall current arises from the Berry phase correction to…

介观与纳米尺度物理 · 物理学 2007-05-23 Di Xiao , Yugui Yao , Zhong Fang , Qian Niu

We consider Bloch electrons in the electromagnetic field and argue the relation between the Berry phase and the quantized Hall conductivity in three-dimension. The Berry phase we consider here is induced by the adiabatic change of the…

介观与纳米尺度物理 · 物理学 2009-11-07 J. Goryo , M. Kohmoto

The recent discovery of inconsistency (MS inconsistency) in the adiabatic approximation is discussed. In particular, the so-called, inconsistency in Berry phase is analyzed. On the contrary to some authors, we found that the MS…

量子物理 · 物理学 2007-05-23 Hua-Zhong Li

A sharp definition of what "adiabatic" means is given; it is then shown that the time-dependent expectation value of a quantum-mechanical observable in the adiabatic limit can be expressed -- in many cases -- by means of the appropriate…

介观与纳米尺度物理 · 物理学 2025-06-03 Raffaele Resta

The selection rule on vibronic angular momentum of $t_{1u}^n \otimes h_g$ Jahn-Teller problem ($n = $ 1-5) is reinvestigated. It is shown that among three adiabatic orbitals only two have nonzero Berry phase. Thus, the Berry phase of…

化学物理 · 物理学 2018-02-21 Naoya Iwahara

We show in this comment that the results obtained in a recent work by Yi et al. [Phys. Rev. Lett. 92, 150406 (2004)] are quantitatively not correct and the proposed subsystem Berry phase is not well-defined.

量子物理 · 物理学 2009-11-13 Li Han , Yong Guo

The effect of fluctuations in the classical control parameters on the Berry phase of a spin 1/2 interacting with a adiabatically cyclically varying magnetic field is analyzed. It is explicitly shown that in the adiabatic limit dephasing is…

量子物理 · 物理学 2009-11-10 Gabriele De Chiara , G. Massimo Palma
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