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Generating Gottesman-Kitaev-Preskill qubit using a cross-Kerr interaction between a squeezed light and Fock states in optics
Kosuke Fukui, Mamoru Endo, Warit Asavanant +3
Gottesman-Kitaev-Preskill (GKP) qubit is a promising ingredient for fault-tolerant quantum computation (FTQC) in optical continuous variables due to its advantage of noise toleranc…
Efficient backcasting search for optical quantum state synthesis
Kosuke Fukui, Shuntaro Takeda, Mamoru Endo +4
Non-Gaussian states are essential for many optical quantum technologies. The so-called optical quantum state synthesizer (OQSS), consisting of Gaussian input states, linear optics,…
Non-Clifford gate on optical qubits by nonlinear feedforward
Shunya Konno, Warit Asavanant, Kosuke Fukui +6
In a continuous-variable optical system, the Gottesman-Kitaev-Preskill (GKP) qubit is a promising candidate for fault-tolerant quantum computation. To implement non-Clifford operat…
Wave-function engineering via conditional quantum teleportation with non-Gaussian entanglement resource
Warit Asavanant, Kan Takase, Kosuke Fukui +3
We propose and analyze a setup to tailor the wave functions of the quantum states. Our setup is based on the quantum teleportation circuit, but instead of the usual two-mode squeez…