中文
相关论文

相关论文: Energy spectra of two interacting fermions with sp…

200 篇论文

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…

量子气体 · 物理学 2015-06-22 Q. Guan , X. Y. Yin , S. E. Gharashi , D. Blume

A system of bosons in a two-dimensional harmonic trap in the presence of Rashba-type spin-orbit coupling is investigated. An analytic treatment of the ground state of a single atom in the weak-coupling regime is presented and used as a…

量子气体 · 物理学 2020-04-29 Pere Mujal , Artur Polls , Bruno Juliá-Díaz

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 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…

量子气体 · 物理学 2013-06-25 O. V. Marchukov , A. G. Volosniev , D. V. Fedorov , A. S. Jensen , N. T. Zinner

The Rashba and Dresselhaus types of spin-orbit coupling are two typical linear coupling forms. We establish the fundamental physics of a model which can be viewed as the double version of the Rashba and Dresselhaus spin-orbit coupling. This…

介观与纳米尺度物理 · 物理学 2022-04-15 Hu Zhang , Lulu Zhao , Chendong Jin , Ruqian Lian , Peng-Lai Gong , RuiNing Wang , JiangLong Wang , Xing-Qiang Shi

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…

量子气体 · 物理学 2016-09-27 Chuanzhou Zhu , Lin Dong , Han Pu

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…

量子气体 · 物理学 2015-09-30 Q. Guan , D. Blume

We consider spin-half fermionic atoms with isotropic Rashba spin-orbit coupling in three directions. The interatomic potential is modeled by a square well potential. We derive the analytic form of the asymptotic wave-functions at short…

量子气体 · 物理学 2013-03-19 Yuxiao Wu , Zhenhua Yu

We investigate a two-dimensional system of with two values of the internal (spin) degree of freedom. It is confined by a deformed harmonic trap and subject to a Zeeman field, Rashba or Dresselhaus one-body spin-orbit couplings and two-body…

量子气体 · 物理学 2015-03-19 O. V. Marchukov , D. V. Fedorov , A. S. Jensen , A. G. Volosniev , N. T. Zinner

We investigate the properties of an atom under the influence of a synthetic three-dimensional spin-orbit coupling (Weyl coupling) in the presence of a harmonic trap. The conservation of total angular momentum provides a numerically…

量子气体 · 物理学 2013-07-29 Brandon M. Anderson , Charles W. Clark

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…

量子气体 · 物理学 2024-08-30 Xiao-Long Chen , Aixi Chen , Shi-Guo Peng

We investigate quantum entanglement between two (spin-1/2) fermions inside a cylindrical harmonic trap, making use of the von Neumann entropy for the reduced single particle density matrix as the pure state entanglement measure. We explore…

量子物理 · 物理学 2009-11-13 B. Sun , D. L. Zhou , L. You

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 study spin-1/2 fermions, interacting via a two-body contact potential, in a one-dimensional harmonic trap. Applying exact diagonalization, we investigate their behavior at finite interaction strength, and discuss the role of the…

量子物理 · 物理学 2013-09-09 Tomasz Sowiński , Tobias Grass , Omjyoti Dutta , Maciej Lewenstein

We present a new model for the study of spin-orbit coupling in interacting quasi-one-dimensional systems and solve it exactly to find the spectral properties of such systems. We show that the combination of spin-orbit coupling and…

介观与纳米尺度物理 · 物理学 2009-10-31 A. V. Moroz , K. V. Samokhin , C. H. W. Barnes

We study the ground-state phase diagram of two-component fermions loaded in a ladder-like lattice at half filling in the presence of spin-orbit coupling. For repulsive fermions with unidirectional spin-orbit coupling along the legs we…

量子气体 · 物理学 2013-10-30 G. Sun , J. Jaramillo , L. Santos , T. Vekua

We study a strongly attractive system of a few spin-1/2 fermions confined in a one-dimensional harmonic trap, interacting via two-body contact potential. Performing exact diagonalization of the Hamiltonian we analyze the ground state and…

量子气体 · 物理学 2015-02-02 Tomasz Sowiński , Mariusz Gajda , Kazimierz Rzążewski

As a means of realizing oscillatory pairing between fermions, we study superfluid pairing between two fermion "spin" species that are confined to adjustable spin-dependent trapping potentials. Focusing on the one-dimensional limit, we find…

量子气体 · 物理学 2011-03-18 Kuei Sun , Julia S. Meyer , Daniel E. Sheehy , Smitha Vishveshwara

In this letter we study both ground state properties and the superfluid transition temperature of a spin-1/2 Fermi gas across a Feshbach resonance with a synthetic spin-orbit coupling, using mean-field theory and exact solution of two-body…

量子气体 · 物理学 2011-11-09 Zeng-Qiang Yu , Hui Zhai

We study the frequency dependent spin- and charge- conductivity tensors of a two-dimensional electron gas (2DEG) with Rashba and Dresselhaus spin-orbit interaction. We show that the angular anisotropy of the spin-splitting energy induced by…

介观与纳米尺度物理 · 物理学 2009-11-11 Jesús A. Maytorena , Catalina López-Bastidas , Francisco Mireles
‹ 上一页 1 2 3 10 下一页 ›