This expression is exactly the determinant of a 2×2 matrix ˜M ˜M= tr( ˜AB) −ivn +E q + ˜µQ ˜µQ ˜µQ ivn +E q + ˜µQ

= ˜µQtr( ˜AB), therefore detM= [tr( ˜AB)]2[(q2/2MQ + ˜µQ)2 +v 2 n − ˜µ2 Q]

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cond-mat.quant-gas · 2026-05-22 · unverdicted · novelty 6.0

Extends Gaussian fluctuation theory from pairing to quartet superfluids in 2D Fermi mixtures, reproducing logarithmic EOS for composite bosons.

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Quantum fluctuations in quartet superfluid of two-dimensional Fermi mixture cond-mat.quant-gas · 2026-05-22 · unverdicted · none · ref 6
Extends Gaussian fluctuation theory from pairing to quartet superfluids in 2D Fermi mixtures, reproducing logarithmic EOS for composite bosons.