Vacuum provides quantum advantage to otherwise simulatable architectures

Calcluth, Cameron; Ferraro, Alessandro; Ferrini, Giulia

doi:10.1103/physreva.107.062414

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Cited by 4 publications

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“…Error correction code for continuous variables encoding is defined by discretizing them. Three bosonic qubit codes have been studied, such as the cat code [6][7][8], Gottesman, Kitaev, and Preskill (GKP) code [9][10][11][12][13][14][15] and the binomial code [16,17]. Cat and GKP codes are candidates for achieving universal quantum computation; see [7,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Teleportation-Based Error Correction Protocol of Time–Frequency Qubit States

Fabre

2023

Applied Sciences

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We present a linear optical protocol for teleporting and correcting both temporal and frequency errors in two time–frequency qubit states. The first state is the frequency (or time-of-arrival) cat qubit, which is a single photon in a superposition of two frequencies (or time-of-arrival), while the second is the time–frequency Gottesman–Kitaev–Preskill (GKP) state, which is a single photon with a frequency comb structure. The proposed optical scheme could be valuable for reducing the error rate in quantum communication protocols involving one of these qubits.

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