Four-Photon (In)Distinguishability Transition
Malte C. Tichy, Hyang-Tag Lim, Young-Sik Ra, Florian Mintert, and Yoon-Ho Kim, Andreas Buchleitner
TL;DR
This paper investigates how the indistinguishability of four photons affects their interference patterns in a multi-port beam splitter, revealing non-monotonic transmission behavior due to complex multi-particle interference effects.
Contribution
It introduces a detailed analysis of four-photon interference with tunable distinguishability, highlighting non-trivial transmission dependencies.
Findings
Transmission probability varies non-monotonically with photon indistinguishability
Multi-particle interference contributions significantly influence output events
Demonstrates complex interference effects in multi-photon systems
Abstract
We demonstrate the conspiration of many-particle interferences of different degree to determine the transmission of four photons of tunable indistinguishability through a four-port beam splitter array. The probability of certain output events depends non-monotonically on the degree of distinguishability, due to distinct multi-particle interference contributions to the transmission signal.
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