Recognition: unknown
Interferometric measurement of the biphoton wave function
classification
🪐 quant-ph
keywords
statebiphotonfunctionwaveinterferencereferencetwo-photonarrival-time
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Interference between an unknown two-photon state (a "biphoton") and the two-photon component of a reference state gives a phase-sensitive arrival-time distribution containing full information about the biphoton temporal wave function. Using a coherent state as a reference, we observe this interference and reconstruct the wave function of single-mode biphotons from a low-intensity narrowband squeezed vacuum state.
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