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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…

量子气体 · 物理学 2015-04-16 Cory D. Schillaci , Thomas C. Luu

We study the short-range correlation strength of three dimensional spin half dilute atomic Fermi gases with spin-orbit coupling. The interatomic interaction is modeled by the contact pseudopotential. In the high temperature limit, we derive…

量子气体 · 物理学 2012-04-17 Zhenhua Yu

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…

量子气体 · 物理学 2015-06-18 X. Y. Yin , S. Gopalakrishnan , D. Blume

We present a comprehensive derivation of a set of universal relations for spin-orbit-coupled Fermi gases in three or two dimension, which follow from the short-range behavior of the two-body physics. Besides the adiabatic energy relations,…

量子气体 · 物理学 2020-04-29 Cai-Xia Zhang , Shi-Guo Peng , Kaijun Jiang

We explore the nonreciprocity of spin-wave excitations in the Rashba-Hubbard ferromagnet on a square lattice. Our study reveals that the propagation of spin-wave excitations exhibit non-reciprocal behavior, i.e., spin waves traveling in…

强关联电子 · 物理学 2025-11-11 Aastha Jain , Dheeraj Kumar Singh

Confinement asymmetry effects on the photoabsorption of a quantum well are discussed by means of a sum-rules approach using a Hamiltonian including a Rashba spin-orbt coupling. We show that while the strength of the excitation is zero when…

超导电性 · 物理学 2015-05-18 A. Ambrosetti , J. M Escartin , E. Lipparini , F. Pederiva

We present exact solutions of two-body problem for spin-1/2 fermions with isotropic spin-orbit(SO) coupling and interacting with an arbitrary short-range potential. We find that in each partial-wave scattering channel, the parametrization…

量子气体 · 物理学 2012-02-16 Xiaoling Cui

We develop the contact theory for spin-orbit-coupled Fermi gases. By using a perturbation method, we derive analytically the universal two-body behavior at short distance, which does not depend on the short-range details of interatomic…

量子气体 · 物理学 2018-02-14 Shi-Guo Peng , Cai-Xia Zhang , Shina Tan , Kaijun Jiang

We investigate the spin-orbit (s-o) interaction in two-dimensional electron gases (2DEGs) in quantum wells with two subbands. From the $8\times 8$ Kane model, we derive a new inter-subband-induced s-o term which resembles the functional…

介观与纳米尺度物理 · 物理学 2013-05-29 Esmerindo S. Bernardes , John Schliemann , Minchul Lee , J. Carlos Egues , Daniel Loss

An asymmetric triangular potential well provides the simplest model for the confinement of mobile electrons at the interface between two insulating oxides, such as LaAlO_3 and SrTiO_3 (LAO/STO). These electrons have been recently shown to…

介观与纳米尺度物理 · 物理学 2013-06-13 Lorien H. Hayden , R. Raimondi , M. E. Flatte' , G. Vignale

We investigate the transport properties of ballistic quantum wires in the presence of Zeeman spin splittings and a spatially inhomogeneous Rashba interaction. The Zeeman interaction is extended along the wire and produces gaps in the energy…

介观与纳米尺度物理 · 物理学 2009-11-13 David Sanchez , Llorens Serra , Mahn-Soo Choi

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…

强关联电子 · 物理学 2015-06-12 Daisuke Maruyama , Youichi Yanase

We investigate the low-energy scattering and bound states of two two-component fermionic atoms in pure two-dimensional (2D) and quasi-2D confinements with Rashba spin-orbit coupling (SOC). We find that the SOC qualitatively changes the…

量子气体 · 物理学 2013-05-30 Peng Zhang , Long Zhang , Wei Zhang

Electronic Raman scattering in the fully symmetric channel couples to the charge excitations in the system, including the plasmons. However, the plasmon response has a spectral weight of $\sim q^2$, where $q$, the momentum transferred by…

介观与纳米尺度物理 · 物理学 2024-02-15 Surajit Sarkar , Alexander Lee , Girsh Blumberg , Saurabh Maiti

We study the fate of a two-dimensional system of interacting fermions with Rashba spin-orbit coupling in the dilute limit. The interactions are strongly renormalized at low densities, and give rise to various fermionic liquid crystalline…

强关联电子 · 物理学 2014-12-12 Jonathan Ruhman , Erez Berg

In semiconductors with inversion asymmetry, spin-orbit coupling gives rise to the well-known Dresselhaus and Rashba effects. If one considers quantum wells with two or more conduction subbands, an additional, intersubband-induced spin-orbit…

材料科学 · 物理学 2007-10-16 F. V. Kyrychenko , C. A. Ullrich , I. D'Amico

We study the two-dimensional Hubbard model with the Rashba type spin-orbit coupling within and beyond the mean-field theory. The antiferromagnetic ground state for the model at half-filling and the Cooper pairing induced by…

超导电性 · 物理学 2022-03-23 Jingxiang Zhao , Qiang Gu

In this review we will discuss the experimental and theoretical progresses in studying spin-orbit coupled degenerate atomic gases during the last two years. We shall first review a series of pioneering experiments in generating synthetic…

量子气体 · 物理学 2012-02-03 Hui Zhai

This paper examines the properties of the self-energy operator in lattice-matched semiconductor heterostructures, focusing on nonanalytic behavior at small values of the crystal momentum, which gives rise to long-range Coulomb potentials. A…

材料科学 · 物理学 2007-05-23 Bradley A. Foreman

We show that Rashba spin-orbit coupling may result in an energy gap in the spectrum of electrons in a two-mode quantum wire if a suitable confining potential is chosen. This leads to a dip in the conductance and a spike in the spin current…

介观与纳米尺度物理 · 物理学 2014-02-03 K. E. Nagaev , A. S. Goremykina
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