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The coupling between the spin degrees of freedom and the orbital angular momentum has a profound effect on the properties of nuclei, atoms and condensed matter systems. Recently, synthetic gauge fields have been realized experimentally in…

Quantum Gases · Physics 2015-06-18 X. Y. Yin , S. Gopalakrishnan , D. Blume

We study harmonically trapped one-dimensional atoms subjected to an equal combination of Rashba and Dresselhaus spin-orbit coupling induced by Raman transition. We first examine the wave function and the degeneracy of the single-particle…

Quantum Gases · Physics 2016-09-27 Chuanzhou Zhu , Lin Dong , Han Pu

We consider a two-dimensional system of harmonically trapped particles with pseudo-spin-$\frac{1}{2}$ degree of freedom. This degree of freedom is coupled to the particle's momentum via the so-called Rashba spin-orbit interaction. We…

We study the ground state properties of spin-half bosons subjected to the Rashba spin-orbit coupling in two dimensions. Due to the enhancement of the low energy density of states, it is expected that the effect of interaction becomes more…

Strongly Correlated Electrons · Physics 2016-03-02 Zhihao Xu , Zhenhua Yu , Shizhong 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

Electronic bound states around charged impurities in two-dimensional systems with structural inversion asymmetry can be described in terms of a two-dimensional hydrogen atom in the presence of a Rashba spin-orbit interaction. Here, the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 C. Grimaldi

We explore the influence of contact interactions on a synthetically spin-orbit coupled system of two ultracold trapped atoms. Even though the system we consider is bosonic, we show that a regime exists in which the competition between the…

Quantum Gases · Physics 2020-02-03 Ayaka Usui , Thomás Fogarty , Steve Campbell , Simon A. Gardiner , Thomas Busch

We study the effects of dipolar interactions on a Bose-Einstein condensate with synthetically generated Rashba spin-orbit coupling. The dipolar interaction we consider includes terms that couple spin and orbital angular momentum in a way…

Quantum Gases · Physics 2013-11-12 Ryan M. Wilson , Brandon M. Anderson , Charles W. Clark

We investigate theoretically the phase diagram of a spin-orbit coupled Bose gas in two-dimensional harmonic traps. We show that discrete Landau levels develop at strong spin-orbit coupling. For a weakly interacting gas, quantum states with…

Quantum Gases · Physics 2012-02-24 Hui Hu , B. Ramachandhran , Han Pu , Xia-Ji Liu

We consider a spin-orbit coupled configuration of spin-1/2 interacting bosons with equal Rashba and Dresselhaus couplings. The phase diagram of the system is discussed with special emphasis to the role of the interaction treated in the…

Quantum Gases · Physics 2012-10-02 Yun Li , Lev P. Pitaevskii , Sandro Stringari

We introduce a theoretical approach to determine the spin structure of harmonically trapped atoms with two-body zero-range interactions subject to an equal mixture of Rashba and Dresselhaus spin-orbit coupling created through Raman coupling…

Quantum Gases · Physics 2015-09-30 Q. Guan , D. Blume

We explore the two-body spectra of spin-$1/2$ fermions in isotropic harmonic traps with external spin-orbit potentials and short range two-body interactions. Using a truncated basis of total angular momentum eigenstates, non-perturbative…

Quantum Gases · Physics 2015-04-16 Cory D. Schillaci , Thomas C. Luu

Synthetic spin-orbit coupling in cold atoms couples the pseudo-spin and spatial degrees of freedom, and therefore the inherent spin symmetry of the system plays an important role. In systems of two pseudo-spin degrees, two particles contain…

Quantum Gases · Physics 2025-02-05 Ayaka Usui , Abel Rojo-Francàs , James Schloss , Bruno Juliá-Díaz

We consider a spin-orbit coupled system of particles in an external trap that is represented by a deformed harmonic oscillator potential. The spin-orbit interaction is a Rashba interaction that does not commute with the trapping potential…

Quantum Gases · Physics 2013-06-25 O. V. Marchukov , A. G. Volosniev , D. V. Fedorov , A. S. Jensen , N. T. Zinner

Ultracold atomic gases provide a novel platform with which to study spin-orbit coupling, a mechanism that plays a central role in the nuclear shell model, atomic fine structure and two-dimensional electron gases. This paper introduces a…

Quantum Gases · Physics 2015-06-22 Q. Guan , X. Y. Yin , S. E. Gharashi , D. Blume

The system of two interacting bosons in a two-dimensional harmonic trap is compared with the system consisting of two noninteracting fermions in the same potential. In particular, we discuss how the properties of the ground state of the…

Quantum Gases · Physics 2018-03-21 Pere Mujal , Artur Polls , Bruno Juliá-Díaz

We study the problem of two harmonically trapped atoms in the presence of spin-orbital-angular-momentum (SOAM) coupling. The two-body energy spectrum is numerically calculated by utilizing the exact diagonalization method. We analyze how…

Quantum Gases · Physics 2024-08-30 Xiao-Long Chen , Aixi Chen , Shi-Guo Peng

We investigate theoretically the combined effects of the electron-electron and the Rashba spin-orbit interactions on two electrons confined in quasi-one-dimensional AlInSb-based double quantum dots. We calculate the two-electron wave…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 C. L. Romano , P. I. Tamborenea , S. E. Ulloa

We consider a spin-1 Bose-Einstein condensate with Rashba spin-orbit coupling and dipole-dipole interaction confined in a cigar-shaped trap. Due to the combined effects of spin-orbit coupling, dipole-dipole interaction, and trap geometry,…

Quantum Gases · Physics 2016-10-26 Masaya Kato , Xiao-Fei Zhang , Daichi Sasaki , Hiroki Saito

Intensive theoretical studies have recently predicted that a Bose-Einstein condensate will exhibit a variety of novel properties if spin-orbit coupling is present. However, an unambiguous fact has also been pointed out: Rashba coupling…

Quantum Gases · Physics 2015-06-11 Qi Zhou , Xiaoling Cui
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