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Condensed Matter > Quantum Gases
Title: Universal correlations along the BEC-BCS crossover
(Submitted on 7 Nov 2022)
Abstract: We show that the long-distance behavior of the two-body density correlation functions and the Cooper-pair probability density of a balanced mixture of a two-component Fermi gas at $T = 0$, is universal along the BEC-BCS crossover. Our result is demonstrated by numerically solving the mean-field BCS model for different finite short-range atomic interaction potentials. We find an analytic expression for the correlation length in terms of the chemical potential and the energy gap at zero momentum.
Submission history
From: Victor Romero-Rochin [view email][v1] Mon, 7 Nov 2022 19:36:43 GMT (925kb,D)
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