Detecting the breached pair phase in a polarized ultracold Fermi gas

Abstract

We propose a method for the experimental detection of a new quantum phase, the breached pair state, in a strongly interacting ultracold Fermi gas with population imbalance. We show that through the time-of-flight Raman imaging, the presence of such a phase can be unambiguously determined with a measurement of the momentum-space phase separation of the minority spin component. To guide the experimental efforts, the momentum-space density profiles are calculated under typical experimental conditions.

arXiv comment4 pages, 3 figures, replaced with the published version

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Cited by in corpus (21)

• Finite temperature phase diagram of a polarised Fermi condensate
• Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy
• The FFLO state in the one-dimensional attractive Hubbard model and its fingerprint in the spatial noise correlations
• Imbalanced Fermi Gases at Unitarity
• Mixtures of ultracold fermions with unequal masses
• Superfluid shells for trapped fermions with mass and population imbalance
• General Hubbard model for strongly interacting fermions in an optical lattice and its phase detection
• Probing quasi-particle states in strongly interacting atomic gases by momentum-resolved Raman photoemission spectroscopy
• Finite temperature phase diagram of trapped Fermi gases with population imbalance
• Noise correlations of the ultra-cold Fermi gas in an optical lattice
• A strongly interacting Sarma superfluid near orbital Feshbach resonances
• Fermion superfluid with hybridized $s$- and $p$-wave pairings
• Spin-Imbalanced Fermi Superfluidity in a Lieb Lattice Hubbard Model
• Dimensional Crossover in a Spin-imbalanced Fermi gas
• Chiral twodimensional p-wave superfluid from s-wave pairing in the BEC regime
• $q$-deformed Fermion in Many-Particle Systems and Its Application to BCS Theory
• Unconventional interaction between vortices in a polarized Fermi gas
• Stability of the Breached Pair State for a Two-species Fermionic System in the Presence of Feshbach Resonance
• Enhanced Fulde-Ferrell-Larkin-Ovchinnikov and Sarma superfluid states near an orbital Feshbach resonance
• Phase diagram for the trapped p-wave fermionic superfluid with population imbalance
• Breached pair superfluidity: a brief review