RT Journal Article
T1 Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors
A1 Navarrete Rodriguez, Alvaro
A1 Wang, Wenyuan
A1 Xu, Feihu
A1 Curty Alonso, Marcos
K1 12 Matemáticas
K1 22 Física
K1 2210.23 Teoría Cuántica
K1 2212.11 Fotones
AB The experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include quantum computing and quantum communication as two prominent examples. However, such characterization often requires technologies which are beyond our current experimental capabilities, and today's methods suffer from errors due to the use of imperfect sources and photodetectors. In this paper, we introduce a simple experimental technique to characterize multi-photon quantum interference by means of practical laser sources and threshold single-photon detectors. Our technique is based on well-known methods in quantum cryptography which use decoy settings to tightly estimate the statistics provided by perfect devices. As an illustration of its practicality, we use this technique to obtain a tight estimation of both the generalized Hong−Ou−Mandel dip in a beamsplitter with six input photons and the three-photon coincidence probability at the output of a tritter.
PB New Journal of Physics
SN 1367-2630
YR 2018
FD 2018-04-12
LK http://hdl.handle.net/11093/2144
UL http://hdl.handle.net/11093/2144
LA eng
NO New Journal of Physics, 20(04): 043018 (2018)
NO Ministerio de Economía y Competitividad (España) | Ref. TEC2014-54898-R
DS Investigo
RD 15-may-2025