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相关论文: Dipolar Dynamics for Interacting Ultracold Fermion…

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We explore the transport properties of an interacting Fermi gas in a three-dimensional optical lattice. The center of mass dynamics of the atoms after a sudden displacement of the trap minimum is monitored for different interaction…

We investigate the transport properties in out-of-equilibrium dynamics of strongly correlated dipolar fermions initially localized in one-dimensional inhomogeneous optical lattice. The dynamics is studied by experimentally measurable…

量子气体 · 物理学 2025-02-11 Barnali Chakrabarti , N D Chavda , Andrea Trombettoni , Arnaldo Gammal

We consider a non-interacting Fermi gas in a combined harmonic and periodic potential. We calculate the energy spectrum and simulate the motion of the gas after sudden replacement of the trap center. For different parameter regimes, the…

软凝聚态物质 · 物理学 2009-11-10 V. Ruuska , P. Torma

We study the dynamics of a non-integrable system comprising interacting cold bosons trapped in an optical lattice in one-dimension by means of exact time-dependent numerical DMRG techniques. Particles are confined by a parabolic potential,…

其他凝聚态物理 · 物理学 2009-11-13 Simone Montangero , Rosario Fazio , Peter Zoller , Guido Pupillo

We study a gas of strongly polarized cold fermions in an optical lattice when the excited p-bands are populated. We derive the relevant Hamiltonian and discuss the expected phase diagram for both repulsive and attractive interactions. In…

统计力学 · 物理学 2009-11-13 J. -P. Martikainen , E. Lundh , T. Paananen

A single-component Fermi gas of polarized dipolar particles in a harmonic trap can undergo a mechanical collapse due to the attractive part of the dipole-dipole interaction. This phenomenon can be conveniently manipulated by the shape of…

凝聚态物理 · 物理学 2007-05-23 K. Goral , M. Brewczyk , K. Rzazewski

We calculate the density profiles of a trapped spin-imbalanced Fermi gas with attractive interactions in a one-dimensional optical lattice, using both the local density approximation (LDA) and density matrix renormalization group (DMRG)…

量子气体 · 物理学 2010-05-07 F. Heidrich-Meisner , G. Orso , A. Feiguin

The quest for quantum degenerate Fermi gases interacting through the anisotropic and long-range dipole-dipole interaction is an exciting and fast developing branch within the cold-atoms research program. Recent experimental progress in…

量子气体 · 物理学 2011-09-09 Aristeu R. P. Lima , Axel Pelster

We analyze the dynamics of ultracold atoms in optical lattices induced by a sudden shift of the underlying harmonic trapping potential. In order to study the effect of strong interactions, dimensionality and lattice topology on transport…

其他凝聚态物理 · 物理学 2011-11-15 Michiel Snoek , Walter Hofstetter

The dynamics of a one-dimensional two-component Fermi gas in the presence of a quasi-periodic optical lattice (OL) is investigated by means of a Density Functional Theory approach. Inspired by the protocol implemented in recent cold-atom…

量子气体 · 物理学 2018-04-11 Francesco Ancilotto , Davide Rossini , Sebastiano Pilati

We investigate the properties of a degenerate dilute gas of neutral fermionic particles in a harmonic trap that interact via dipole-dipole forces. We employ the semiclassical Thomas-Fermi method and discuss the Dirac correction to the…

凝聚态物理 · 物理学 2007-05-23 K. Goral , Berthold-Georg Englert , K. Rzazewski

Under the framework of the semiclassical theory, we investigate the equilibrium-state properties of a spin polarized dipolar Fermi gas through full numerical calculation. We show that the Fermi surfaces in both real and momentum spaces are…

量子气体 · 物理学 2009-11-18 J. -N. Zhang , S. Yi

We develop a meanfield treatment of a polarized trapped Fermi gas with dipole-dipole interactions. Our approach is based on self-consistent semiclassical Hartree-Fock theory that accounts for direct and exchange interactions. We discuss our…

量子气体 · 物理学 2010-09-16 D. Baillie , P. B. Blakie

We investigate dynamical properties of a one-component Fermi gas with dipole-dipole interaction between particles. Using a variational function based on the Thomas-Fermi density distribution in phase space representation, the total energy…

其他凝聚态物理 · 物理学 2011-04-12 T Sogo , L He , T Miyakawa , S Yi , H Lu , H Pu

We theoretically investigate the thermodynamics of an interacting inhomogeneous two-component Fermi gas in an optical lattice. Motivated by a recent experiment by L. Hackerm\"uller et al., Science, 327, 1621 (2010), we study the effect of…

We investigate the dynamical properties of a trapped finite-temperature normal Fermi gas with dipole-dipole interaction. For the free expansion dynamics, we show that the expanded gas always becomes stretched along the direction of the…

量子气体 · 物理学 2015-05-27 J. -N. Zhang , R. -Z. Qiu , L. He , S. Yi

By means of the Boltzmann-Vlasov kinetic equation we investigate dynamical properties of a trapped, one-component Fermi gas at zero temperature, featuring the anisotropic and long-range dipole-dipole interaction. To this end, we determine…

量子气体 · 物理学 2017-10-13 F. Waechtler , A. R. P. Lima , A. Pelster

Anisotropic dipole-dipole interactions between ultracold dipolar fermions break the symmetry of the Fermi surface and thereby deform it. Here we demonstrate that such a Fermi surface deformation induces a topological phase transition --…

量子气体 · 物理学 2016-05-25 E. G. C. P. van Loon , M. I. Katsnelson , L. Chomaz , M. Lemeshko

We present a theoretical analysis of phase separations between two repulsively interacting components in an ultracold fermionic gas, occurring at the dimensional crossover in a harmonic trap with varying aspect ratios. A tailored kinetic…

We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtures of the two lowest spin states and perform…

量子气体 · 物理学 2018-09-11 S. Baier , D. Petter , J. H. Becher , A. Patscheider , G. Natale , L. Chomaz , M. J. Mark , F. Ferlaino
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