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AssigneeNippon Telegraph and Telephone Corporation
InventorsTakuya Ikuta, Seiseki Akibue, Yuya Yonezu, Toshimori Honjo, Hiroki Takesue
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Disclosed are a high-dimensional quantum state generation device and a state measurement device using the mutually unbiased bases utilizing a finite field. The mutually unbiased bases in a high-dimensional quantum state are realized by a calculation method utilizing the finite field. A device is disclosed that utilizes mutually unbiased bases in the time-bin quantum state of light, frequency-bin quantum state and other modes of light, as the high-dimensional quantum state utilizing the finite field. The generation device and the measurement device are realized by the phase modulator and units equivalent to the matrix transformation operation, respectively. The measurement device includes a phase modulation unit corresponding to a diagonal unitary transform to a computational basis which is the first unit on the front stage side, and a high-dimensional Hadamard transform measurement unit or a Fourier transform measurement unit which is the second unit.
A measurement device for performing projective measurements onto higher-dimensional quantum states which are defined by a computational basis {|m>|m∈{0, 1, . . . , d−1}} of d-dimensional quantum states made up of states of orthogonal light, and mutually unbiased bases of label r (integer of 0 or more) that are non-orthogonal to the computational basis and define a quantum state of label n (0, 1, . . . , d−1),
A measurement device for performing projective measurements onto higher-dimensional quantum states which are defined by a computational basis {|m>|m∈{0, 1, . . . , d−1}} of d-dimensional quantum states made up of states of orthogonal light, and mutually unbiased bases of label r (integer of 0 or more) that are non-orthogonal to the computational basis and define a quantum state of label n (0, 1, . . . , d−1),
(canceled)
A generation device of a high-dimensional quantum state which is defined by a computational basis {|m>|m∈{0, 1, . . . , d−1}} of d-dimensional quantum states made up of states of orthogonal light, and mutually unbiased bases of label r (integer of 0 or more) that are non-orthogonal to the computational basis and define a quantum state of label n (0, 1, . . . , d−1),
A generation device of a high-dimensional quantum state which is defined by a computational basis {|m>|m∈{0, 1, . . . , d−1}} of d-dimensional quantum states made up of states of orthogonal light, and mutually unbiased bases of label r (integer of 0 or more) that are non-orthogonal to the computational basis and define a quantum state of label n (0, 1, . . . , d−1),
Dependencies are inferred from the claim text.