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Optimal entangling operations between deterministic blocks of qubits encoded into single photons

3 Nov 2017arXiv:1711.01319links table onlyarchive 2025-07-28

Jake A. Smith, Lev Kaplan

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Here, we numerically simulate probabilistic elementary entangling operations between rail-encoded photons for the purpose of scalable universal quantum computation or communication. We propose grouping logical qubits into single-photon blocks wherein single-qubit rotations and the CNOT gate are fully deterministic and simple to implement. Inter-block communication is then allowed through said probabilistic entangling operations. We find a promising trend in the increasing probability of successful inter-block communication as we increase the number of optical modes operated on by our elementary entangling operations.

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