Results 71 to 80 of about 406 (180)
Dark–bright solitons in a superfluid Bose–Fermi mixture
New Journal of Physics, 2016 The recent experimental realisation of Bose–Fermi superfluid mixtures of dilute ultracold atomic gases has opened new perspectives in the study of quantum many-body systems.
Marek Tylutki +3 more
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Disordered structures in ultracold spin-imbalanced Fermi gas
New Journal of Physics, 2023 We investigate properties of spin-imbalanced ultracold Fermi gas in a large range of spin polarizations at low temperatures. We present results of microscopic calculations based on mean-field and density functional theory approaches, with no symmetry ...
Buğra Tüzemen +3 more
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Detecting Friedel oscillations in ultracold Fermi gases [PDF]
The European Physical Journal D, 2017 Investigating Friedel oscillations in ultracold gases would complement the studies performed on solid state samples with scanning-tunneling microscopes. In atomic quantum gases interactions and external potentials can be tuned freely and the inherently slower dynamics allow to access non-equilibrium dynamics following a potential or interaction quench.
Keno Riechers +4 more
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Shock waves in ultracold Fermi (Tonks) gases [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2004 It is shown that a broad density perturbation in a Fermi (Tonks) cloud takes a shock wave form in the course of time evolution. A very accurate analytical description of shock formation is provided. A simple experimental setup for the observation of shocks is discussed.
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Pairing superfluidity in spin-orbit coupled ultracold Fermi gases [PDF]
Science China Physics, Mechanics & Astronomy, 2014 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.
Yi, Wei, Zhang, Wei, Cui, Xiaoling
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Beyond universality in repulsive SU(N) Fermi gases
SciPost PhysicsItinerant ferromagnetism in dilute Fermi gases is predicted to emerge at values of the gas parameter where second-order perturbation theory is not accurate enough to properly describe the system.
Jordi Pera, Joaquim Casulleras, Jordi Boronat
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Unpaired topological triply degenerate point for spin-tensor-momentum-coupled ultracold atoms
Physical Review Research, 2022 The realization of triply degenerate points (TDPs) with exotic fermionic excitations has opened a new perspective for the understanding of our nature.
Zhoutao Lei, Yuangang Deng, Chaohong Lee
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Fermi-Bose crossover in superconductors: Disorder in control
Physical Review ResearchIn contrast to ultracold atomic gases, Fermi-Bose crossover in solid-state superconductors is rare and a relatively recent observation. We report the first theoretical proposal of disorder-tuned Fermi-Bose crossover in superconductors with a customized ...
Madhuparna Karmakar, Rajesh Narayanan
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BCS–BEC crossover in a quasi-two-dimensional Fermi superfluid
New Journal of Physics, 2023 We study the crossover from the Bardeen–Cooper–Shrieffer regime to the Bose–Einstein-condensation regime in an anisotropic trapped quantum gas of ultracold fermionic atoms.
Jing Zhou +4 more
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Dressed molecules in resonantly interacting ultracold atomic Fermi gases [PDF]
Physical Review A, 2007 We present a detailed analysis of the two-channel atom-molecule effective Hamiltonian for an ultracold two-component homogeneous Fermi gas interacting near a Feshbach resonance. We particularly focus on the two-body and many-body properties of the dressed molecules in such a gas.
Falco, G.M., Stoof, H.T.C.
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