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Chiral Topological Phase 2D Fermi Gas With Spin Orbit Coupling.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.. The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter.Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas..PDF Traveling Majorana Solitons in a Low-Dimensional Spin-Orbit-Coupled.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. Collective dipole oscillations of a spin-orbit coupled Fermi gas Authors Shanchao Zhang 1 , Chengdong He 1 , Elnur Hajiyev 1 , Zejian Ren 1 , Bo Song 1 , Gyu-Boong Jo 2 Affiliations 1 Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China. We review some recent progresses on the study of ultracold Fermi gases with synthetic spin-orbit coupling. In particular, we focus on the pairing superfluidity in these systems at zero temperature. Recent studies have shown that different forms of spin-orbit coupling in various spatial dimensions can lead to a wealth of novel pairing superfluidity.FERMI GASES WITH SYNTHETIC SPIN-ORBIT COUPLING | Annual Review of Cold.Dec 20, 2018 · The collective dipole mode is induced and measured in a spin-orbit (SO) coupled degenerate Fermi gas of 173Yb atoms. Using a differential optical Stark shift, we split the degeneracy of three. The information of the spin-orbit coupling is encoded in the single atom dispersion α,k. For degenerate Fermi gases, χab shall be dominated by the contribution from close to the Fermi surface. We calculate χxx by Eq. (16) for 1D, 2D and 3D Fermi gases with spin-orbit coupling generated in the x direction by the NIST scheme with δ = 0. Abstract. We review our recent experimental realization and investigation of a spin-orbit (SO) coupled Bose-Einstein condensate (BEC) and quantum degenerate Fermi gas. By using two counter-propagating Raman lasers and controlling the different frequency of two Raman lasers to engineer the atom-light interaction, we first study the SO coupling.Two types of dark solitons in a spin-orbit-coupled Fermi gas.The coupling of the spin of electrons to their motional state lies at the heart of topological phases of matter. We have created and detected spin-orbit coupling in an atomic Fermi gas 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. To fully.Interaction-tuned dynamical transitions in a Rashba spin-orbit-coupled.Aug 31, 2012 · 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-frequency spectroscopy. 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-frequency spectroscopy. From momentum.Impurity in a Fermi gas under non-Hermitian spin-orbit coupling.Topological phases of matter. 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. Quantum phase transitions and Berezinskii-Kosterlitz-Thouless temperature in a two-dimensional spin-orbit-coupled Fermi gas. PDF Search Scholar. 0. 0. 0.Spin-orbit coupled two-electron Fermi gases of ytterbium atoms.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 ABSTRACT SPIN-ORBIT-COUPLED QUANTUM GASES Juraj Radi c, Doctor of.FIG. 1. (a) Energy-level diagram of Fermi gases 40K. Three hyperﬁne spin states are coupled with the electronic excited states through three Raman lasers. The atoms are initially prepared in the free reservoir spin state |9/2,5/2. (b) Conﬁguration of three Raman lasers in the xy plane. The detunings of the Raman lasers 2 and 3 are. Next we study the time evolution of the magnetization in a Rashba spin-orbit-coupled Fermi gas, starting from a fully-polarized initial state. We model the dynamics using a Boltzmann equation, which we solve in the Hartree-Fock approx-imation. The resulting non-linear system of equations gives rise to three distinct..Spin-Orbit Coupled Degenerate Fermi Gases - ResearchGate.A 3D Rashba spin-orbit coupled atomic Fermi gas at a broad Feshbach resonance (1/k Fa s = 0) and at the spin-orbit cou-pling strength λk F/E = 1. Here, k = (3π2n )1/3 and E F = ~2k2 F/(2m) are the Fermi wavevector and Fermi en-ergy, respectively, expressed in terms of the gas density n F. The critical temperature, in units of the mean-ﬁeld.Quantum phase transitions and Berezinskii-Kosterlitz-Thouless.Motivated by recent experimental development, we investigate spin-orbit coupled repulsive Fermi atoms in a one-dimensional optical lattice. Using the density-matrix renormalization group method, we calculate the momentum distribution function, gap, and spin-correla. The coupling of the spin of electrons to their motional state lies at the heart of topological phases of matter. We have created and detected spin-orbit coupling in an atomic Fermi gas 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. To fully. Anderson Localization in Degenerate Spin-Orbit Coupled Fermi Gas with Disorder Sci Rep. 2016 Mar 3;6:22623. doi: 10.1038/srep22623.... In the large disorder limits, the increase of the strength of spin- orbit coupling will increase the mean superconducting order parameter. This phenomenon shows that the system is more insensitive to disorder.Hydrodynamics of Normal Atomic Gases with Spin-orbit Coupling.Berezinskii-Kosterlitz-Thoules phase transition of spin-orbit coupled Fermi gas in optical lattice. Ho-Kin Tang 1,2, Xiaosen Yang 1, Jinhua Sun 1 and Hai-Qing Lin 1. Published 8 August 2014... We use a determinant quantum Monte Carlo simulation and a mean-field approach to study the Rashba spin-orbit coupled Fermi gases in square optical. 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. Rashba spin-orbit coupling, strong interactions, and the BCS-BEC crossover in the ground state of the two-dimensional Fermi gas Phys. Rev. Lett. , 117 ( 2016 ) , Article 040401 , 10.1103/PhysRevLett.117.040401.Spin-Injection spectroscopy of a spin-orbit coupled Fermi gas.Probing Majorana fermions in spin-orbit-coupled atomic Fermi gases. Physical Review A, 2012. Xia-ji Liu. Lei Jiang. Han Pu. Hui Hu. Download Download PDF.
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