Angular momentum of rotating fermionic superfluids by Sagnac phonon interferometry (opens in new tab)

Fermionic many-body systems provide a setting to investigate how interactions drive collective quantum behaviour, including macroscopic coherence and superfluidity. Central to these phenomena is the formation of Cooper pairs, correlated states of two fermions that behave as composite bosons and condense below a critical temperature. Unlike elementary bosons, these pairs retain an internal structure determined by the underlying fermionic correlations, which is essential for understanding super...