The role of causality in tunable Fermi gas condensates

Jen Tsung Hsiang, Chi Yong Lin, Da Shin Lee, Ray J. Rivers

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We develop a new formalism for the description of the condensates of cold Fermi atoms whose speed of sound can be tuned with the aid of a narrow Feshbach resonance. We use this to look for spontaneous phonon creation that mimics spontaneous particle creation in curved space-time in Friedmann-Robertson-Walker and other model universes.

Original languageEnglish
Article number404211
JournalJournal of Physics Condensed Matter
Issue number40
StatePublished - 9 Oct 2013


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