Probing Cooper Pairs with Franson Interferometry [PDF]
Vittorio Giovannetti, Kazuya YuasaA setup based on the Franson optical interferometer is analyzed, which allows us to detect the coherence properties of Cooper pairs emerging via tunneling from a superconductor in contact with two 1D channels. By tuning the system parameters we show that both the internal coherence of the Cooper pairs and their de Broglie wavelength can be recovered via current-current correlation measurements.View original: http://arxiv.org/abs/1204.3692
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