Results 71 to 80 of about 5,965 (154)

Effect of Disorder in BCS-BEC Crossover

, 2012
In this article we have investigated the effect of weak random disorder in the BCS-BEC crossover region. The disorder is included in the mean field formalism through NSR theory of superconducting fluctuations.
Basu, Saurabh, Khan, Ayan, Kim, Sang Wook   +2 more
core   +1 more source

Multiple period states of the superfluid Fermi gas in an optical lattice

New Journal of Physics, 2016
We study multiple period states of a two-component unpolarized superfluid Fermi gas in an optical lattice along the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover.
Sukjin Yoon, Franco Dalfovo, Takashi Nakatsukasa, Gentaro Watanabe   +3 more
doaj   +1 more source

BCS-BEC Crossover in Symmetric Nuclear Matter at Finite Temperature: Pairing Fluctuation and Pseudogap

, 2010
By adopting a $T$-matrix based method within $G_0G$ approximation for the pair susceptibility, we studied the effects of pairing fluctuation on the BCS-BEC crossover in symmetric nuclear matter.
A. A. Isayev, A. J. Leggett, A. L. Fetter, P. Ring, Xu-Guang Huang   +4 more
core   +1 more source

Diversified vortex phase diagram for a rotating trapped two-band Fermi gas in the BCS-BEC crossover

New Journal of Physics, 2018
We report the equilibrium vortex phase diagram of a rotating two-band Fermi gas confined to a cylindrically symmetric parabolic trapping potential, using the recently developed finite-temperature effective field theory (Klimin et al 2016 Phys. Rev.
S N Klimin, J Tempere, M V Milošević
doaj   +1 more source

Strong pairing in two dimensions: pseudogaps, domes, and other implications

New Journal of Physics, 2020
This paper addresses the transition from the normal to the superfluid state in strongly correlated two dimensional fermionic superconductors and Fermi gases.
Xiaoyu Wang, Qijin Chen, K Levin
doaj   +1 more source

Crossovers in Unitary Fermi Systems

, 2010
Universality and crossover is described for attractive and repulsive interactions where, respectively, the BCS-BEC crossover takes place and a ferromagnetic phase transition is claimed.
A. Bohr, A. Bohr, A. Griffin, B. DeMarco, B.A. Gelman, B.M. Andersen, C.A. Regal, C.J. Pethick, C.J. Pethick, D. Poilblanc, D.-H. Kim, D.M. Eagles, D.S. Petrov, E. Arrigoni, E. Berg, E. Burovski, E. Burovski, E. Stoner, E.H. Lieb, F. Marsiglio, F. Pistolesi, F. Werner, F.C. Zhang, G-B. Jo, G. Baym, G. Baym, G.A. Baker, G.E. Astrakharchik, G.M. Bruun, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H. Heiselberg, H.J. Schulz, I. Bloch, I.B. Spielman, J. Bardeen, J. Carlson, J. Carlson, J. Dobaczewski, J. Zaanen, J.-P. Martikainen, J.M. Tranquada, J.Y. Gan, K.A. Brueckner, K.E. Strecker, K.M. O’Hara, L.P. Gorkov, M. Cozzini, M. Fisher, M. Houbiers, M. Kitagawa, M. Köhl, M. Vojta, M.G. Alford, N.D. Mermin, N.N. Bogoliubov, P. Nozières, P. Pieri, P.G.J. Dongen, P.G.J. Dongen, P.W. Anderson, Q. Chen, R. Haussmann, R. Micnas, R. Micnas, R. Staudt, S. Cowell, S. Fölling, S. Jonsell, S. Nascimbene, S. Tan, S.R. White, T. Bourdel, T. Pruschke, T. Rom, T. Schaefer, T.-L. Ho, T.B. Ottenstein, T.D. Lee, U. Schneider, V. Efimov, V.A. Belyakov, V.J. Emery, V.R. Pandharipande, V.R. Pandharipande, V.R. Pandharipande, V.R. Pandharipande, W. Hofstetter, Y. Nishida, Y.J. Uemura, Z. Hadzibabic, Z. Yu   +101 more
core   +1 more source

Extracting the condensate density from projection experiments with Fermi gases

, 2005
A debated issue in the physics of the BCS-BEC crossover with trapped Fermi atoms is to identify characteristic properties of the superfluid phase. Recently, a condensate fraction was measured on the BCS side of the crossover by sweeping the system in a ...
Perali, A., Pieri, P., Strinati, G. C.
core   +1 more source

Quenching a Fermi superfluid across the BEC-BCS crossover

SciPost Physics
We study the response of a Fermi superfluid to a rapid change of the interaction strength. For a broad range of quench parameters, the order parameter exhibits damped oscillations, however, we also identify quench regimes in which these oscillations are ...
Moritz Breyer, Daniel Eberz, Andreas Kell, Michael Köhl
doaj   +1 more source

UEG Week 2015 Poster Presentations

, 2015
United European Gastroenterology Journal, Volume 3, Issue S5, Page 146-687, October 2015.
wiley   +1 more source

Peaks and widths of radio-frequency spectra: An analysis of the phase diagram of ultra-cold Fermi gases

Results in Physics
We provide a comprehensive theoretical study of the radio-frequency (rf) spectra of a two-component Fermi gas with balanced populations in the normal region of the temperature-vs-coupling phase diagram.
Leonardo Pisani, Michele Pini, Pierbiagio Pieri, Giancarlo Calvanese Strinati   +3 more
doaj   +1 more source