Sampling of bosonic qubits

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The boson sampling problem has brought a lot of attention in the quantum information field because it is not efficiently solvable with a classical computer; nonetheless it can be implementable with linear optical interferometers with single-boson sources. Recently, we introduced a more general problem, the multi-boson correlation sampling problem, which allows to take advantage of the muti-mode spectral distribution of the bosonic sources together with time-correlated measurements in order to achieve a sampling not only over the output channels of the interferometer but also over the joint detection times. This problem was analyzed for both single-photon sources and thermal sources. In this work, we demonstrate that it is possible to use single qubit bosonic sources in order to sample not only in the described "space-time" degree of freedom but also over all the possible exponential number of multi-qubit output states.
Original languageEnglish
Article number1560017
Number of pages8
JournalInternational Journal of Quantum Information
Issue number07n08
Publication statusPublished - 2 Jan 2015
Externally publishedYes


  • quantum computing
  • boson sampling
  • multi-boson correlation sampling
  • multi-boson interence


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