High-dimensional optical quantum logic in large operational spaces
The probabilistic nature of single-photon sources and photon–photon interactions
encourages encoding as much quantum information as possible in every photon for the
purpose of photonic quantum information processing. Here, by encoding high-dimensional
units of information (qudits) in time and frequency degrees of freedom using on-chip
sources, we report deterministic two-qudit gates in a single photon with fidelities exceeding
0.90 in the computational basis. Constructing a two-qudit modulo SUM gate, we generate …
encourages encoding as much quantum information as possible in every photon for the
purpose of photonic quantum information processing. Here, by encoding high-dimensional
units of information (qudits) in time and frequency degrees of freedom using on-chip
sources, we report deterministic two-qudit gates in a single photon with fidelities exceeding
0.90 in the computational basis. Constructing a two-qudit modulo SUM gate, we generate …
[引用][C] High-dimensional optical quantum logic in large operational spaces. npj Quantum Inf. 5
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