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Criterion for bosonic superfluidity in an optical lattice
Roberto B. Diener, Qi Zhou, Hui Zhai +1
We show that the current method of determining superfluidity in optical lattices based on a visibly sharp bosonic momentum distribution can be misleading, for even a n…
Quantum Spin Dynamics of Spin-1 Bose Gas
Roberto B. Diener, Tin-Lun Ho
We show that the quantum evolution of a spin-1 Bose gas with nearly all bosons initially in the state has a "quantum carpet" {\em spin-time} structure with self-similar p…
Critical Rotational Frequency for Superfluid Fermionic Gases across a Feshbach Resonance
Hui Zhai, Tin-Lun Ho
We present a method to determine the critical rotational frequencies for superfluidity of both uniform and trapped Fermi gases across wide Feshbach resonance. It is found that as o…
Fragmentation of Bose-Einstein Condensates
Erich J. Mueller, Tin-Lun Ho, Masahito Ueda +1
We present the theory of bosonic systems with multiple condensates, unifying disparate models which are found in the literature, and discuss how degeneracies, interactions, and sym…
Homogeneous Fermion Superfluid with Unequal Spin Populations
Tin-Lun Ho, Hui Zhai
For decades, the conventional view is that an s-wave BCS superfluid can not support uniform spin polarization due to a gap in the quasiparticle excitation spectrum. We show tha…