1. PDF Vortex line in spin-orbit coupled atomic Fermi gases.
2. Two types of dark solitons in a spin-orbit-coupled Fermi gas.
3. [1411.3043] Fermi Gases with Synthetic Spin-Orbit Coupling.
4. Spin-Orbit Coupled Degenerate Fermi Gases - NASA/ADS.
5. Intoduction to Ultracold Atomic - Spin Orbit Coupling.
6. PDF Rashba spin-orbit-coupled atomic Fermi gases.
7. Spin-orbit interaction - Wikipedia.
8. PDF ABSTRACT SPIN-ORBIT-COUPLED QUANTUM GASES Juraj Radi c, Doctor of.
9. PDF Spin-orbit coupling in Bose-Einstein condensate and degenerate Fermi gases.
10. PDF Topological uniform superfluid and Fulde-Ferrell-Larkin-Ovchinnikov.
11. Realization of two-dimensional spin-orbit coupling for Bose... - Science.
12. Title: A long-lived spin-orbit-coupled degenerate dipolar Fermi gas.
13. PDF Spin-orbit coupling effects on the superfluidity of a Fermi gas in an.
14. Phase Diagram of a Spin-Orbit Coupled Dipolar Fermi Gas at T = 0 K.

PDF Vortex line in spin-orbit coupled atomic Fermi gases.

Abstract: We briefly review recent progress on ultracold atomic Fermi gases with different types of synthetic spin-orbit coupling, including the one-dimensional (1D) equal weight Rashba-Dresselhaus and two-dimensional (2D) Rasbha spin-orbit couplings. Theoretically, we show how the single-body, two-body and many-body properties of Fermi gases are dramatically.

Two types of dark solitons in a spin-orbit-coupled Fermi gas.

We demonstrate all-optical implementation of spin-orbit coupling (SOC) in a two-electron Fermi gas of $^{173}$Yb atoms by coupling two hyperfine ground states. Ultracold Fermi gas. Keywords spin-orbit coupling, Bose-Einstein condensate, Fermi gases, topological change, momentum-resolved radio-frequency spectroscopy, momentum-resolved Raman spectroscopy PACS numbers 67.85.d, 05.30.Fk, 03.75.b, 03.75.Mn Contents 1 Introduction 598 2 Generation of SO coupling in BEC 87Rb 600. Abstract. We investigate the thermodynamic properties of a superfluid Fermi gas subject to Rashba spin-orbit coupling and effective Zeeman field. We adopt a T -matrix scheme that takes beyond-mean-field effects, which are important for strongly interacting systems, into account. We focus on the calculation of two important quantities: the.

[1411.3043] Fermi Gases with Synthetic Spin-Orbit Coupling.

The Rashba effect splits electron bands by the spin-orbit coupling (SOC) in crystals that lack an inversion center. The Rashba effect induces a sharp electronic DOS feature that results in an E F much lower than the spin-degenerate case and also a more 2D-like Fermi surface (e.g., ring or elliptic torus). The topology of Fulde-Ferrell (FF) superfluids with nonzero momentum pairings have never been explored until recent findings that FF superfluids in a spin-orbit (SO) coupled Fermi gas can accommodate Majorana fermions in real space in low dimensions and Weyl fermions in momentum space in three dimension.

Spin-Orbit Coupled Degenerate Fermi Gases - NASA/ADS.

Spin-orbit coupled atomic Fermi gases with balanced or imbalanced populations, at zero or finite temperatures, in two or three dimensions, etc. [3-16]. The main motivation behind these works is that the spin-orbit coupled atomic Fermi gases are ideal systems for studying topologically nontrivial superfluid phases [3,7-9], with the. In quantum physics, the spin-orbit interaction (also called spin-orbit effect or spin-orbit coupling) is a relativistic interaction of a particle's spin with its motion inside a potential.A key example of this phenomenon is the spin-orbit interaction leading to shifts in an electron's atomic energy levels, due to electromagnetic interaction between the electron's magnetic dipole, its. Background. A supersolid is a special quantum state of matter where particles form a rigid, spatially ordered structure, but also flow with zero viscosity.This is in contradiction to the intuition that flow, and in particular superfluid flow with zero viscosity, is a property exclusive to the fluid state, e.g., superconducting electron and neutron fluids, gases with Bose–Einstein condensates.

Intoduction to Ultracold Atomic - Spin Orbit Coupling.

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PDF Rashba spin-orbit-coupled atomic Fermi gases.

We theoretically investigate a spin-orbit-coupled s-wave superfluid Fermi gas, to examine the time evolution of the system, after an s-wave pairing interaction is replaced by a p-wave one at t = 0.In our recent paper [T. Yamaguchi, D. Inotani, and Y. Ohashi, J. Phys. Soc. Jpn. 86, 013001 (2017)], we proposed that this manipulation may realize a p-wave superfluid Fermi gas because the p-wave.

Spin-orbit interaction - Wikipedia.

Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter. We directly reveal the spin-orbit gap via spin-injection spectroscopy, which characterizes the energy-momentum dispersion and spin composition of the quantum states. For energies within the spin-orbit gap, the system acts as a spin diode. We.

PDF ABSTRACT SPIN-ORBIT-COUPLED QUANTUM GASES Juraj Radi c, Doctor of.

We theoretically investigate the Higgs oscillation in a one-dimensional Raman-type spin-orbit-coupled Fermi superfluid with the time-dependent Bogoliubov-de Gennes equations. By linearly ramping or abruptly changing the effective Zeeman field in both the Bardeen-Cooper-Schrieffer state and the topological superfluid state, we find the amplitude of the order parameter exhibits an oscillating. In this Letter, we report the first experimental realization and investigation of a spin-orbit coupled Fermi gas. Both spin dephasing in spin dynamics and momentum distribution asymmetry of the equilibrium state are observed as hallmarks of spin-orbit coupling in a Fermi gas. The single particle dispersion is mapped out by using momentum-resolved radio. Only the spin of an object in one direction can be known, and observing the spin in another direction destroys the original information about the spin. Quantum mechanics is probabilistic: whether the spin of any individual atom sent into the apparatus is positive or negative is random. Development of modern quantum mechanics.

PDF Spin-orbit coupling in Bose-Einstein condensate and degenerate Fermi gases.

1D spin-orbit-coupled Fermi gas were recently predicted [30,31]. However, the crucial issue raised in practical manipulations, i.e., the fate of these solitons at a finite velocity of motion, was not addressed. For concreteness, in the main text we focus on 1D spin-orbit-coupled Fermi superfluids. The results of 2D Fermi. We study the dynamics of a nondegenerate, harmonically trapped Fermi gas following a sudden ramp of the spin-orbit coupling strength using a Boltzmann equation approach. In the absence of interactions and a Zeeman field, we solve the spin-orbit-coupled Boltzmann equation analytically and derive expressions for the phase-space and temporal dynamics of an arbitrary initial spin state. For a. Made available by U.S. Department of Energy Office of Scientific and Technical Information.

PDF Topological uniform superfluid and Fulde-Ferrell-Larkin-Ovchinnikov.

Since for fully spin-polarized electron gas, spin-polarized charge carriers can transmit through a DW only by spin-flip scattering from the DW, the behavior shown in Fig. 1(a) indicates that the Rashba spin-orbit coupling can enhance the spin-flip scattering of spin-polarized charge carriers from nanosized sharp DWs in magnetic semiconductor.

Realization of two-dimensional spin-orbit coupling for Bose... - Science.

The U.S. Department of Energy's Office of Scientific and Technical Information.

Title: A long-lived spin-orbit-coupled degenerate dipolar Fermi gas.

Recently a quantum degenerate dipolar Fermi gas of the most magnetic dysprosium with spin-orbit coupling (SOC) was created in the laboratory, whose lifetime is up to 400 ms. [ 23] In this work, we theoretically explore the possibility of enhancing ferromagnetism in a dipolar Fermi gas with SOC at zero temperature. We consider a repulsive two-component Fermi gas confined in a two-dimensional isotropic harmonic potential and subject to a large Rashba spin-orbit coupling. The single-particle dispersion can be tailored by the spin-orbit-coupling term, which provides an opportunity to study itinerant ferromagnetism in this system. We show that the interplay among spin-orbit coupling, correlation effect, and.

PDF Spin-orbit coupling effects on the superfluidity of a Fermi gas in an.

SO coupled degenerate Fermi gas, and the main results include the following: (i) starting from a fully spin polar-ized state and turning on the Raman coupling, we have observed SO coupling induced spin dephasing in the quan-tum spin dynamics; (ii) for equilibrium states we have observed the asymmetry in the spin-resolved momentum distribution due to SO coupling; (iii). Abstract We study the fate of an impurity in a two-component, non-interacting Fermi gas under a non-Hermitian spin-orbit coupling (SOC) which is generated by dissipative Raman lasers. While SOC mixes the two spin species in the Fermi gas thus modifies the single-particle dispersions, we consider the case where the impurity only interacts with one of the spin species. As a result, spectral. We study the dynamics of a non-degenerate, harmonically trapped Fermi gas following a sudden ramp of the spin-orbit coupling strength. In the non-interacting limit, we solve the Boltzmann equation in the presence of spin orbit coupling analytically, and derive expressions for the dynamics of an arbitrary initial spin state.

Phase Diagram of a Spin-Orbit Coupled Dipolar Fermi Gas at T = 0 K.

A spin-orbit-coupled Fermi gas could interact with itself because the lasers effectively split each atom into two distinct components, each with its own spin state, and two such atoms with different velocities could then interact and pair up with one other. This kind of pairing opens up possibilities, Spielman said, for studying novel forms of.