Efficient Classical Algorithm for Boson Sampling with Partially Distinguishable Photons.
PHYSICAL REVIEW LETTERS(2018)
Abstract
We demonstrate how boson sampling with photons of partial distinguishability can be expressed in terms of interference of fewer photons. We use this observation to propose a classical algorithm to simulate the output of a boson sampler fed with photons of partial distinguishability. We find conditions for which this algorithm is efficient, which gives a lower limit on the required indistinguishability to demonstrate a quantum advantage. Under these conditions, adding more photons only polynomially increases the computational cost to simulate a boson sampling experiment.
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Key words
boson sampling,photons,efficient classical algorithm
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