Critical Temperature and Condensate Fraction of a Fermion Pair Condensate
Yasuhisa Inada, Munekazu Horikoshi, Shuta Nakajima, Makoto, Kuwata-Gonokami, Masahito Ueda, Takashi Mukaiyama
TL;DR
This paper reports experimental measurements of the critical temperature and condensate fraction in a fermion pair condensate of lithium-6 atoms, revealing behavior near the unitarity limit using Bragg spectroscopy.
Contribution
First measurement of critical temperature and condensate fraction in a fermion pair condensate near unitarity using Bragg spectroscopy.
Findings
Critical temperature levels off near unitarity
Condensate fraction approaches a limiting value
Bragg spectroscopy effectively probes condensate properties
Abstract
We report on measurements of the critical temperature and the temperature dependence of the condensate fraction for a fermion pair condensate of 6Li atoms. The Bragg spectroscopy is employed to determine the critical temperature and the condensate fraction after a fast magnetic field ramp to the molecular side of the Feshbach resonance. Our measurements reveal the level-off of the critical temperature and the limiting behavior of condensate fraction near the unitarity limit.
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