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相关论文: Quantum rings with time dependent spin-orbit coupl…

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We study the behavior of the Rabi oscillations of a driven central spin (qubit) coupled to an antiferromagnetic spin bath (environment). It is found that the decoherence behavior of the central spin depends on the detuning, driving…

量子物理 · 物理学 2011-02-11 Xiao-Zhong Yuan , Hsi-Sheng Goan , Ka-Di Zhu

This article presents an overview of results pertaining to electronic structure, transport properties, and interaction effects in ballistic quantum wires with Rashba spin splitting. Limits of weak and strong spin--orbit coupling are…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Governale , U. Zuelicke

Rashba spin-orbit interactions generated by time-dependent electric fields acting on weak links (that couple together non-magnetic macroscopic leads) can magnetize the junction. The Rashba spin-orbit interaction that affects the spins of…

介观与纳米尺度物理 · 物理学 2025-10-23 Debashree Chowdhury , O. Entin-Wohlman , A. Aharony , R. I. Shekhter , M. Jonson

Solutions of the Schr\"odinger equation are obtained for an electron in a two-dimensional circular semiconductor quantum ring in the presence of both external uniform constant magnetic field and the Rashba and Dresselhaus spin-orbit…

数学物理 · 物理学 2012-12-21 V. V. Kudryashov , A. V. Baran

We introduce a spin-interference device that comprises a quantum ring (QR) with three embedded quantum point contacts (QPCs) and study theoretically its spin transport properties in the presence of Rashba spin-orbit interaction. Two of the…

介观与纳米尺度物理 · 物理学 2015-06-17 Leo Diago-Cisneros , Francisco Mireles

Semiconductor Rashba nanowires are quasi-one dimensional systems that have large spin-orbit (SO) coupling arising from a broken inversion symmetry due to an external electric field. There exist parametrized multiband models that can…

介观与纳米尺度物理 · 物理学 2020-08-25 Samuel D. Escribano , Alfredo Levy Yeyati , Elsa Prada

We study the ground-state properties of electrons confined to a quantum wire and subject to a smoothly modulated Rashba spin-orbit coupling. When the period of the modulation becomes commensurate with the band filling, the Rashba coupling…

介观与纳米尺度物理 · 物理学 2009-07-28 G. I. Japaridze , Henrik Johannesson , Alvaro Ferraz

Interacting one-dimensional conductors with Rashba spin-orbit coupling are shown to exhibit a spin-selective Peierls-type transition into a mixed spin-charge-density-wave state. The transition leads to a gap for one-half of the conducting…

介观与纳米尺度物理 · 物理学 2010-08-03 Bernd Braunecker , George I. Japaridze , Jelena Klinovaja , Daniel Loss

We present analytical and numerical results for the effect of Rashba spin-orbit coupling on band structure, transport, and interaction effects in quantum wires when the spin precession length is comparable to the wire width. In contrast to…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Governale , U. Zuelicke

We report on an analytical description of spin-dependent electronic transition rates which are controlled by a radiation induced spin-Rabi oscillation of weakly spin-exchange and spin-dipolar coupled paramagnetic states (S=1/2). The…

材料科学 · 物理学 2013-04-24 R. Glenn , W. J. Baker , C. Boehme , M. E. Raikh

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A…

介观与纳米尺度物理 · 物理学 2013-10-11 Almas F. Sadreev , E. Ya. Sherman

We investigate the effect of strong interactions on the spectral properties of quantum wires with strong Rashba spin-orbit interaction in a magnetic field, using a combination of Matrix Product State and bosonization techniques. Quantum…

强关联电子 · 物理学 2017-06-07 Georg W. Winkler , Martin Ganahl , Dirk Schuricht , Hans Gerd Evertz , Sabine Andergassen

We investigate theoretically the influence of the spin-orbit interaction of Rashba type on the magnetoresistance of a semiconducting ferromagnetic nanostructure with a laterally constrained domain wall. The domain wall is assumed sharp (on…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Barnas , J. Berakdar , V. I. Ivanov , W. Dobrowolski , V. F. Mitin

We theoretically investigate the ground state and dynamics of a Rabi-coupled pseudospin-1/2 Bose-Einstein condensate, where only one spin component is subjected to an external potential. We show that in the quasiperiodic potential the Rabi…

量子气体 · 物理学 2025-10-10 Swarup K. Sarkar , Sh. Mardonov , E. Ya. Sherman , Pankaj K. Mishra

During the last years there has been much interest, and theoretical discussion, about the possibility to use spin-orbit coupling to control the carriers spins in two-dimensional semiconducting heterostructures. Spin polarization at the…

介观与纳米尺度物理 · 物理学 2024-12-31 A. A. Reynoso , G. Usaj , C. A. Balseiro

Noncentrosymmetric superconductors with broken inversion symmetry $P$ offer rich physical phenomena such as the upper critical magnetic field $H_{c2}$ beyond the Pauli limit and magnetoelectric effect. The relativistic spin-orbit…

超导电性 · 物理学 2018-07-12 Ryohei Wakatsuki , Naoto Nagaosa

We investigate the transmission properties of a spin transistor coupled to two quantum point contacts acting as spin injector and detector. In the Fabry-Perot regime, transport is mediated by quasibound states formed between tunnel…

介观与纳米尺度物理 · 物理学 2016-08-10 M. I. Alomar , Llorenç Serra , David Sanchez

We study a one-dimensional helical system with random Rashba spin-orbit coupling. Using renor- malization group methods, we derive a consistent set of flow equations governing the important con- trol parameters of the backscattering…

介观与纳米尺度物理 · 物理学 2014-07-10 Florian Geissler , Francois Crépin , Björn Trauzettel

We investigate the electron transport through a mesoscopic ring side-coupled with a quantum dot(QD) in the presence of Rashba spin-orbit(SO) interaction. It is shown that both the Fano resonance and the spin interference effects play…

介观与纳米尺度物理 · 物理学 2015-05-18 Guo-Hui Ding , Bing Dong

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Chesi , G. F. Giuliani