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arXiv · 1201.6281

The universal equation of state of a unitary fermionic gas

R. K. Bhaduri·W. van Dijk·M. V. N. Murthy
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Abstract

It is suggested that for a fermi gas at unitarity, the two-body bond plays a special role. We propose an equation of state using an ansatz relating the interaction part of the $l$-body cluster to its two-body counterpart. This allows a parameter-free comparison with the recently measured equation of state by the ENS group. The agreement between the two over a range of fugacity ($z<5$ for a homogeneous gas, and $z<10$ for the trapped gas) leads us to perform the calculations of more sensitive quantities measured recently by the MIT group.

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R. K. Bhaduri, W. van Dijk, M. V. N. Murthy. 2012-01-30. The universal equation of state of a unitary fermionic gas. https://doi.org/10.1103/physrevlett.108.260402

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