Extends Gaussian fluctuation theory from pairing to quartet superfluids in 2D Fermi mixtures, reproducing logarithmic EOS for composite bosons.
For instance, we can havek 1 =k ′ 1,k 2 =k ′ 2, andq=k 3 −k ′ 3
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Quantum fluctuations in quartet superfluid of two-dimensional Fermi mixture
Extends Gaussian fluctuation theory from pairing to quartet superfluids in 2D Fermi mixtures, reproducing logarithmic EOS for composite bosons.