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Linear multi-particle, multi-port interferometers and their matrix representations

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arxiv 1912.03707 v1 pith:5Y5R3AQB submitted 2019-12-08 quant-ph

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keywords interferometerslinearmatrixmultiplenumberparticleparticlesquantum
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Interferences in multi-path systems for single and multiple particles are theoretically analyzed. A holistic method is presented, which allows to construct the unitary transition matrix describing interferometers for any port number d and particle number n. This work has two centerpieces. First, a solution algorithm for realizing any desired unitary transformation in an interferometer for the single particle case is demonstrated. Secondly, a simple scheme for calculating the rotation matrices of beam splitters and phase shifters for multiple particles is shown. Such linear optical devices are especially important for quantum circuits and quantum information processing.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Implementation and representation of qudit multi-controlled unitaries and hypergraph states by N-body angular momentum couplings

    quant-ph 2025-06 conditional novelty 5.0 of 10

    A representation of qudit multi-controlled unitaries and hypergraph states in terms of N-body angular momentum couplings, with a concrete cross-Kerr optical implementation for qutrits and a new class of angular moment...

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