Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Matsuura, Takaya"'
The quantum error-correcting code in the continuous-variable (CV) system attracts much attention due to its flexibility and high resistance against specific noise. However, the theory of fault tolerance in CV systems is premature and lacks the genera
Externí odkaz:
http://arxiv.org/abs/2410.12365
Autor:
Walshe, Blayney W., Baragiola, Ben Q., Ferretti, Hugo, Gefaell, José, Vasmer, Michael, Weil, Ryohei, Matsuura, Takaya, Jaeken, Thomas, Pantaleoni, Giacomo, Han, Zhihua, Hillmann, Timo, Menicucci, Nicolas C., Tzitrin, Ilan, Alexander, Rafael N.
High-rate quantum error correcting codes mitigate the imposing scale of fault-tolerant quantum computers but require the efficient generation of non-local many-body entanglement. We provide a linear-optical architecture with these properties, compati
Externí odkaz:
http://arxiv.org/abs/2408.04126
We developed new concentration inequalities for a quantum state on an $N$-qudit system or measurement outcomes on it that apply to an adversarial setup, where an adversary prepares the quantum state. Our one-sided concentration inequalities for a qua
Externí odkaz:
http://arxiv.org/abs/2403.11719
Continuous Variable (CV) quantum key distribution (QKD) is a promising candidate for practical implementations due to its compatibility with the existing communication technology. A trusted device scenario assuming that an adversary has no access to
Externí odkaz:
http://arxiv.org/abs/2305.17684
Autor:
Walshe, Blayney W., Alexander, Rafael N., Matsuura, Takaya, Baragiola, Ben Q., Menicucci, Nicolas C.
Publikováno v:
Phys. Rev. A 108, 042602 (2023)
Optical continuous-variable cluster states (CVCSs) in combination with Gottesman-Kitaev-Preskill~(GKP) qubits enable fault-tolerant quantum computation so long as these resources are of high enough quality. Previous studies concluded that a particula
Externí odkaz:
http://arxiv.org/abs/2305.11630
Publikováno v:
Quantum 7, 1095 (2023)
Recent studies showed the finite-size security of binary-modulation CV-QKD protocols against general attacks. However, they gave poor key-rate scaling against transmission distance. Here, we extend the security proof based on complementarity, which i
Externí odkaz:
http://arxiv.org/abs/2301.03171
Among various classes of quantum error correcting codes (QECCs), non-stabilizer codes have rich properties and are of theoretical and practical interest. Decoding non-stabilizer codes is, however, a highly non-trivial task. In this paper, we show tha
Externí odkaz:
http://arxiv.org/abs/2210.06661
Continuous-variable quantum key distribution (CV-QKD) has many practical advantages including compatibility with current optical communication technology. Implementation using heterodyne measurements is particularly attractive since it eliminates the
Externí odkaz:
http://arxiv.org/abs/2208.11983
Autor:
Tzitrin, Ilan, Matsuura, Takaya, Alexander, Rafael N., Dauphinais, Guillaume, Bourassa, J. Eli, Sabapathy, Krishna K., Menicucci, Nicolas C., Dhand, Ish
Publikováno v:
Phys. Rev. X Quantum 2, 040353 (2021)
The scalability of photonic implementations of fault-tolerant quantum computing based on Gottesman-Kitaev-Preskill (GKP) qubits is injured by the requirements of inline squeezing and reconfigurability of the linear optical network. In this work we pr
Externí odkaz:
http://arxiv.org/abs/2104.03241