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We proposed and demonstrated a new approach for realizing spin orbit coupling with ultracold atoms. We use orbital levels in a double well potential as pseudospin states. Two-photon Raman transitions between left and right wells induce…

We propose an experimental scheme to create spin-orbit coupling in spin-3 Cr atoms using Raman processes. Employing linear Zeeman effect and optical Stark shift, two spin states within the ground electronic manifold are selected, which…

量子气体 · 物理学 2012-06-11 Y. Deng , J. Cheng , H. Jing , C. -P. Sun , S. Yi

Spin-orbit coupling in solids describes an interaction between an electron's spin, an internal quantum-mechanical degree of freedom, with its linear momentum, an external property. Spin-orbit interaction, due to its relativistic nature, is…

介观与纳米尺度物理 · 物理学 2014-08-07 J. Shabani , Younghyun Kim , A. P. McFadden , R. M. Lutchyn , C. Nayak , C. J. palmstrøm

We propose a scheme for generating Rashba spin-orbit coupling and perpendicular Zeeman field simultaneously for cold fermionic atoms in a harmonic trap through the coupling between atoms and laser fields. The realization of Rashba…

量子气体 · 物理学 2010-09-02 Chuanwei Zhang

We investigate theoretically radio-frequency spectroscopy of weakly bound molecules in an ultracold spin-orbit-coupled atomic Fermi gas. We consider two cases with either equal Rashba and Dresselhaus coupling or pure Rashba coupling. The…

量子气体 · 物理学 2013-02-04 Hui Hu , Han Pu , Jing Zhang , Shi-Guo Peng , Xia-Ji Liu

In situ control of spin-orbit coupling in coherent transport using a clean GaAs/AlGaAs 2DEG is realized, leading to a gate-tunable crossover from weak localization to antilocalization. The necessary theory of 2D magnetotransport in the…

介观与纳米尺度物理 · 物理学 2009-11-07 J. B. Miller , D. M. Zumbuhl , C. M. Marcus , Y. B. Lyanda-Geller , D. Goldhaber-Gordon , K. Campman , A. C. Gossard

Strong spin-orbit coupling can have a profound effect on the electronic structure in a metal or semiconductor, particularly for low electron concentrations. We show how, for small values of the Fermi energy compared to the spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-11 E. Cappelluti , C. Grimaldi , F. Marsiglio

We make detailed analysis of each possible spin-orbit coupling of zincblende narrow-gap cylindrical quantum dots built in two-dimensional electron gas. These couplings are related to both bulk (Dresselhaus) and structure (Rashba) inversion…

原子物理 · 物理学 2007-05-23 C. F. Destefani , S. E. Ulloa , G. E. Marques

A nonperturbative interaction of an electronic system with a laser field can substantially modify its physical properties. In particular, in two-dimensional (2D) materials with a lack of inversion symmetry, the achievement of a regime of…

介观与纳米尺度物理 · 物理学 2016-10-20 Dmitry Yudin , Ivan A. Shelykh

A combination of spin-orbit coupling and electron-electron interaction gives rise to a new type of collective spin modes, which correspond to oscillations of magnetization even in the absence of the external magnetic field. We review recent…

强关联电子 · 物理学 2022-12-14 Dmitrii L. Maslov , Abhishek Kumar , Saurabh Maiti

In this letter we address the issue how synthetic spin-orbit (SO) coupling can strongly affect three-body physics in ultracold atomic gases. We consider a system which consists of three fermionic atoms, including two spinless heavy atoms…

量子气体 · 物理学 2014-01-15 Zhe-Yu Shi , Xiaoling Cui , Hui Zhai

Spin-orbit coupling is a manifestation of special relativity. In the reference frame of a moving electron, electric fields transform into magnetic fields, which interact with the electron spin and lift the degeneracy of spin-up and…

介观与纳米尺度物理 · 物理学 2007-09-18 Lorenz Meier , Gian Salis , Ivan Shorubalko , Emilio Gini , Silke Schoen , Klaus Ensslin

We show that by switching on a spin-orbit interaction in a cold-atom system, experiencing a Zeeman-like coupling to an external field, e.g., in a Bose-Einstein condensate, one can simulate a quantum measurement on a precessing spin.…

量子物理 · 物理学 2014-05-27 D. Sokolovski , E. Ya. Sherman

It is shown that the Rashba and Dresselhaus spin orbit couplings enhance the conclusive power in the experiments on the excitonic condensed state by at least three low temperature effects. First, spin orbit coupling facilitates the…

强关联电子 · 物理学 2015-05-13 M. Ali Can , T. Hakioğlu

Spin-orbit coupling plays an important role in determining the properties of solids, and is crucial for spintronics device applications. Conventional spin-orbit coupling arises microscopically from relativistic effects described by the…

强关联电子 · 物理学 2007-05-23 Congjun Wu , Shou-Cheng Zhang

Cold atoms with laser-induced spin-orbit (SO) interactions provide intriguing new platforms to explore novel quantum physics beyond natural conditions of solids. Recent experiments demonstrated the one-dimensional (1D) SO coupling for boson…

We calculate the reflection and transmission probabilities in a one-dimensional Fermi gas with an equal mixing of the Rashba and Dresselhaus spin-orbit coupling (RD-SOC) produced by an external Raman laser field. These probabilities are…

量子物理 · 物理学 2016-12-07 Su-Ju Wang , Chris H. Greene

Spin-orbit interaction couples the spin of a particle to its motion and leads to spin-induced transport phenomena such as spin-Hall effects and Chern insulators. In this work, we extend the concept of internal-external state coupling to…

Spin-charge interconversion is currently the focus of intensive experimental and theoretical research both for its intrinsic interest and for its potential exploitation in the realization of new spintronic functionalities. Spin-orbit…

介观与纳米尺度物理 · 物理学 2017-04-04 Amin Maleki , Roberto Raimondi

In a two-dimensional electron gas as realized by a semiconductor quantum well, the presence of spin-orbit coupling of both the Rashba and Dresselhaus type leads to anisotropic dispersion relations and Fermi contours. We study the effect of…

凝聚态物理 · 物理学 2009-11-10 John Schliemann , Daniel Loss