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arXiv · 1801.08086

Virial expansion for the Tan contact and Beth-Uhlenbeck formula from 2D SO(2,1) anomalies

Wilder S. Daza·Joaquín E. Drut·Chris L. Lin·Carlos R. Ordóñez
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Abstract

The relationship between 2D $SO(2,1)$ conformal anomalies in nonrelativistic systems and the virial expansion is explored using recently developed path-integral methods. In the process, the Beth-Uhlenbeck formula for the shift of the second virial coefficient $\delta b_2$ is obtained, as well as a virial expansion for the Tan contact. A possible extension of these techniques for higher orders in the virial expansion is discussed.

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Wilder S. Daza, Joaquín E. Drut, Chris L. Lin, Carlos R. Ordóñez. 2018-01-24. Virial expansion for the Tan contact and Beth-Uhlenbeck formula from 2D SO(2,1) anomalies. https://doi.org/10.1103/physreva.97.033630

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