Results 81 to 90 of about 406 (180)

Fermi-Bose Mixtures and BCS-BEC Crossover in High-T_c Superconductors

Condensed Matter, 2019
In this review article we consider theoretically and give experimental support to the models of the Fermi-Bose mixtures and the BCS-BEC (Bardeen Cooper Schrieffer−Bose Einstein) crossover compared with the strong-coupling approach, which can serve ...
Maxim Yu. Kagan, Antonio Bianconi
doaj   +1 more source

Quantum critical thermal transport in the unitary Fermi gas

Physical Review Research, 2020
Strongly correlated systems are often associated with an underlying quantum critical point which governs their behavior in the finite-temperature phase diagram.
Bernhard Frank, Wilhelm Zwerger, Tilman Enss   +2 more
doaj   +1 more source

Suppression of Molecular Decay in Ultracold Gases without Fermi Statistics [PDF]

Physical Review Letters, 2008
We study inelastic processes for ultracold three-body systems in which only one interaction is resonant. We have found that the decay rates for weakly bound molecules due to collisions with other atoms can be suppressed not only without fermionic statistics but also when bosonic statistics applies.
D’Incao, J. P., Esry, B. D.
openaire   +3 more sources

Ground state of an ultracold Fermi gas of tilted dipoles in elongated traps

New Journal of Physics, 2018
Many-body dipolar effects in Fermi gases are quite subtle as they energetically compete with the large kinetic energy at and below the Fermi surface (FS).
Vladimir Veljić, Aristeu R P Lima, Lauriane Chomaz, Simon Baier, Manfred J Mark, Francesca Ferlaino, Axel Pelster, Antun Balaž   +7 more
doaj   +1 more source

Polarons, dressed molecules and itinerant ferromagnetism in ultracold Fermi gases [PDF]

Reports on Progress in Physics, 2014
In this review, we discuss the properties of a few impurity atoms immersed in a gas of ultracold fermions, the so-called Fermi polaron problem. On one side, this many-body system is appealing because it can be described almost exactly with simple diagrammatic and/or variational theoretical approaches.
Massignan, Pietro Alberto, Zaccanti, Matteo, Bruun, Georg M.   +2 more
openaire   +8 more sources

Mesoscopic conduction in ultracold Fermi gases

, 2014
ISBN:978-3-8439-0643 ...
openaire   +4 more sources

Itinerant ferromagnetism in SU(N)-symmetric fermi gases at finite temperature: first order phase transitions and time-reversal symmetry

New Journal of Physics, 2023
At temperatures well below the Fermi temperature T _F , the coupling of magnetic fluctuations to particle-hole excitations in a two-component Fermi gas leads to non-analytic corrections in the renormalized free energy and makes the transition to ...
Chen-How Huang, Miguel A Cazalilla
doaj   +1 more source

Exotic superfluidity and pairing phenomena in atomic Fermi gases in mixed dimensions

Scientific Reports, 2017
Atomic Fermi gases have been an ideal platform for simulating conventional and engineering exotic physical systems owing to their multiple tunable control parameters.
Leifeng Zhang, Yanming Che, Jibiao Wang, Qijin Chen   +3 more
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A higher-order topological twist on cold-atom SO($5$) Dirac fields

SciPost Physics
Ultracold Fermi gases of spin-3/2 atoms provide a clean platform to realise SO($5$) models of 4-Fermi interactions in the laboratory. By confining the atoms in a two-dimensional Raman lattice, we show how this system can be used as a flexible quantum ...
Alejandro Bermudez, Daniel González-Cuadra, Simon Hands
doaj   +1 more source

Theoretical Approach to the Gauge Invariant Linear Response Theories for Ultracold Fermi Gases with Pseudogap

Advances in Condensed Matter Physics, 2015
Recent experimental progress allows for exploring some important physical quantities of ultracold Fermi gases, such as the compressibility, spin susceptibility, viscosity, optical conductivity, and spin diffusivity. Theoretically, these quantities can be
Hao Guo, Yan He
doaj   +1 more source