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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…

Quantum Gases · Physics 2014-01-15 Zhe-Yu Shi , Xiaoling Cui , Hui Zhai

Although multilayer systems possess global inversion symmetry, some of the layers lack local inversion symmetry because no global inversion centers are present on such layers. Such locally non-centrosymmetric systems exhibit spatially…

Superconductivity · Physics 2015-03-19 Daisuke Maruyama , Manfred Sigrist , Youichi Yanase

The spin-split states subject to Rashba spin-orbit coupling in two-dimensional systems have long been accepted as pointing inplane and perpendicular to the corresponding wave vectors. This is in general true for free electron model, but…

Mesoscale and Nanoscale Physics · Physics 2009-12-13 Ming-Hao Liu , Ching-Ray Chang

The quasi-two-dimensional electron gas found at the LaAlO3/SrTiO3 interface offers exciting new functionalities, such as tunable superconductivity, and has been proposed as a new nanoelectronics fabrication platform. Here we lay out a new…

Strongly Correlated Electrons · Physics 2015-05-14 A. D. Caviglia , M. Gabay , S. Gariglio , N. Reyren , C. Cancellieri , J. -M. Triscone

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…

Strongly Correlated Electrons · Physics 2022-12-14 Dmitrii L. Maslov , Abhishek Kumar , Saurabh Maiti

The two-dimensional Rashba-Hubbard model is investigated in order to clarify the electron correlation effects in non-centrosymmetric metals. The renormalization effect on Rashba spin-orbit coupling (RSOC) is calculated on the basis of…

Strongly Correlated Electrons · Physics 2015-06-12 Daisuke Maruyama , Youichi Yanase

We perform an all-optical spin-dynamic measurement of the Rashba spin-orbit interaction in (110)-oriented GaAs/AlGaAs quantum wells. The crystallographic direction of quantum confinement allows us to disentangle the contributions to…

Spin orbit coupling plays a non-perturbation effect in many recently developed novel fields including topological insulators and spin-orbit assistant Mott insulators. In this paper, strongly temperature-dependent spin orbit coupling,…

Materials Science · Physics 2014-06-17 Lunyong Zhang , Y. B. Chen , Jian Zhou , Shan-Tao Zhang , Zheng-bin Gu , Shu-Hua Yao , Yan-Feng Chen

We investigated effects of a Rashba-type spin-orbit coupling (SOC) on the condensed density and superfluid density tensor of a two-component Fermi gas in the BCS-BEC crossover at zero temperature. In anisotropic three dimensions (3D), we…

Quantum Gases · Physics 2015-05-30 Kezhao Zhou , Zhidong Zhang

We theoretically study an interacting few-body system of Rashba spin-orbit coupled two-component Bose gases confined in a harmonic trapping potential. We solve the interacting Hamiltonian at large Rashba coupling strengths using Exact…

Quantum Gases · Physics 2013-07-01 B. Ramachandhran , Hui Hu , Han Pu

Spin-orbit (SO) coupling -- the interaction between a quantum particle's spin and its momentum -- is ubiquitous in nature, from atoms to solids. In condensed matter systems, SO coupling is crucial for the spin-Hall effect and topological…

Quantum Gases · Physics 2015-03-19 Y. -J. Lin , K. Jiménez-García , I. B. Spielman

Spin-orbit coupling (SOC) is an essential ingredient in topological materials, conventional and quantum-gas based alike.~Engineered spin-orbit coupling in ultracold atom systems --unique in their experimental control and measurement…

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…

Mesoscale and Nanoscale Physics · Physics 2020-08-25 Samuel D. Escribano , Alfredo Levy Yeyati , Elsa Prada

The influence of Rashba spin-orbit coupling on zero conductance resonances appearing in one dimensional ring asymmetrically coupled to two leads is investigated. For this purpose, the transmission function of the corresponding one-electron…

Mesoscale and Nanoscale Physics · Physics 2012-06-14 Urs Aeberhard , Katsunori Wakabayashi , Manfred Sigrist

A novel method and nanodevice are introduced that allows to rotate the single electron spin confined in a gated electrostatic InSb nanowire quantum dot. Proposed method does not require application of any (oscillating or static) external…

Mesoscale and Nanoscale Physics · Physics 2016-01-22 J. Pawłowski , P. Szumniak , S. Bednarek

Spin-orbit coupling is an important ingredient in many recently discovered phenomena such as the spin-Hall effect and topological insulators. Of particular interest is topological superconductivity, with its potential application in…

Quantum Gases · Physics 2011-04-28 Jay D. Sau , Rajdeep Sensarma , Stephen Powell , I. B. Spielman , S. Das Sarma

We present a general model with both Rashba and Dresselhaus spin-orbit couplings to describe a two-dimensional noncentrosymmetric superconductor. The combined effects of the two spin-orbit couplings on superconductivity are investigated in…

Superconductivity · Physics 2022-03-23 Xu Yan , Qiang Gu

We consider ultracold atoms inside a ring optical cavity that supports a single plane-wave mode. The cavity field, together with an external coherent laser field, drives a two-photon Raman transition between two internal pseudo-spin states…

Quantum Gases · Physics 2016-11-29 Chuanzhou Zhu , Lin Dong , Han Pu

We investigate the longitudinal spin relaxation arising due to spin-flip transitions accompanied by phonon emission in quantum dots where the strength of the Rashba spin-orbit coupling is a random function of the lateral (in-plane)…

Disordered Systems and Neural Networks · Physics 2009-11-11 E. Ya. Sherman , D. J. Lockwood

We study the "phase diagram" of a Hubbard plaquette with Rashba spin-orbit coupling. We show that the peculiar way in which Rashba coupling breaks the spin-rotational symmetry of the Hubbard model allows a mixing of singlet and triplet…

Strongly Correlated Electrons · Physics 2018-03-06 Valentina Brosco , Daniele Guerci , Massimo Capone
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