2015
DOI: 10.1103/physrevx.5.041015
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Generalized Multiphoton Quantum Interference

Abstract: Nonclassical interference of photons lies at the heart of optical quantum information processing. Here, we exploit tunable distinguishability to reveal the full spectrum of multiphoton nonclassical interference. We investigate this in theory and experiment by controlling the delay times of three photons injected into an integrated interferometric network. We derive the entire coincidence landscape and identify transition matrix immanants as ideally suited functions to describe the generalized case of input pho… Show more

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Cited by 146 publications
(198 citation statements)
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“…Partially distinguishable particles have been treated by generalizing the bosonic permanent and the fermionic determinant to immanants [46][47][48]. Alternatively, the initial many-body state can be decomposed into a sum of orthogonal terms with well-defined degrees of distinguishability, such that any two particles will either perfectly interfere or not at all [5,[41][42][43][44].…”
Section: Partially Distinguishable Particlesmentioning
confidence: 99%
“…Partially distinguishable particles have been treated by generalizing the bosonic permanent and the fermionic determinant to immanants [46][47][48]. Alternatively, the initial many-body state can be decomposed into a sum of orthogonal terms with well-defined degrees of distinguishability, such that any two particles will either perfectly interfere or not at all [5,[41][42][43][44].…”
Section: Partially Distinguishable Particlesmentioning
confidence: 99%
“…Unitary transformations on optical modes have been used to implement single-particle quantum gates [1,2], quantum simulations [3], and boson sampling [4][5][6][7][8][9][10][11]. Traditionally, these transformations are implemented on spatial modes using a system of beam splitters.…”
Section: Introductionmentioning
confidence: 99%
“…In conventional boson sampling schemes that use spatial modes [which we refer to as spatial mode boson sampling (SMBS)], multiple identical photons enter a high-dimensional transformation over spatial modes, such as a system of beam splitters and phase shifters, while the output probability distribution is monitored with detectors at each of the output modes [5][6][7][8][9][10][11], as shown in Fig. 1.…”
Section: Introductionmentioning
confidence: 99%
“…Under non-resonant excitation, a brightness as large as 0.65 is demonstrated with an indistinguishability of 0.78. Such device is highly suited for Boson sampling experiments with a large number of photons 30 . Using resonant excitation, our sources are of the highest quality, and more than an order-of-magnitude brighter than currently used SPDC sources.…”
mentioning
confidence: 99%