Superfluidity and phase transitions in a resonant Bose gas Export

@misc{citeulike:2162114, abstract = {The atomic Bose gas is studied across a Feshbach resonance, mapping out its phase diagram, and computing its thermodynamics and excitation spectra. It is shown that such a degenerate gas admits two distinct atomic and molecular superfluid phases, with the latter distinguished by the absence of atomic off-diagonal long-range order, gapped atomic excitations, and deconfined atomic pi-vortices. The properties of the molecular superfluid are explored, and it is shown that across a Feshbach resonance it undergoes a quantum Ising transition to the atomic superfluid, where both atoms and molecules are condensed. In addition to its distinct thermodynamic signatures and deconfined half-vortices, in a trap a molecular superfluid should be identifiable by the absence of an atomic condensate peak and the presence of a molecular one.}, archivePrefix = {arXiv}, author = {Radzihovsky, Leo and Weichman, Peter B. and Park, Jae I.}, citeulike-article-id = {2162114}, citeulike-linkout-0 = {http://arxiv.org/abs/0711.0425}, citeulike-linkout-1 = {http://arxiv.org/pdf/0711.0425}, day = {3}, eprint = {0711.0425}, keywords = {bose\_gas, feshbach, superfluid}, month = {Nov}, posted-at = {2007-12-23 17:00:16}, priority = {2}, title = {Superfluidity and phase transitions in a resonant Bose gas}, url = {http://arxiv.org/abs/0711.0425}, year = {2007} }

TY - ELEC ID - citeulike:2162114 L3 - citeulike-article-id:2162114 N2 - The atomic Bose gas is studied across a Feshbach resonance, mapping out its phase diagram, and computing its thermodynamics and excitation spectra. It is shown that such a degenerate gas admits two distinct atomic and molecular superfluid phases, with the latter distinguished by the absence of atomic off-diagonal long-range order, gapped atomic excitations, and deconfined atomic pi-vortices. The properties of the molecular superfluid are explored, and it is shown that across a Feshbach resonance it undergoes a quantum Ising transition to the atomic superfluid, where both atoms and molecules are condensed. In addition to its distinct thermodynamic signatures and deconfined half-vortices, in a trap a molecular superfluid should be identifiable by the absence of an atomic condensate peak and the presence of a molecular one. TI - Superfluidity and phase transitions in a resonant Bose gas KW - bose_gas KW - feshbach KW - superfluid AU - Radzihovsky, Leo AU - Weichman, Peter AU - Park, Jae PY - 2007/Nov/03/ UR - http://arxiv.org/abs/0711.0425 ER -