Radiofrequency spectroscopy provides a microscopic probe of fermionic pairing in ultracold Fermi gases. Calculations now suggest that there is a one-to-one correspondence between the theory of these spectra and the theory of paraconductivity fluctuations in superconductors, that is, the effect of enhanced conductivity even before the system enters the superconducting state.
- Pierbiagio Pieri
- Andrea Perali
- Giancarlo Calvanese Strinati
