84 citations · 619 across the 35 of their papers we have counts for
5 papers · 1 filter
Trusted center verification model and classical channel remote state preparation
Tomoyuki Morimae, Yuki Takeuchi
The classical channel remote state preparation (ccRSP) is an important two-party primitive in quantum cryptography. Alice (classical polynomial-time) and Bob (quantum polynomial-ti…
Quantum remote sensing under the effect of dephasing
Hideaki Okane, Hideaki Hakoshima, Yuki Takeuchi +2
The quantum remote sensing (QRS) is a scheme to add security about the measurement results of a qubit-based sensor. A client delegates a measurement task to a remote server that ha…
Polylog-overhead highly fault-tolerant measurement-based quantum computation: all-Gaussian implementation with Gottesman-Kitaev-Preskill code
Hayata Yamasaki, Kosuke Fukui, Yuki Takeuchi +2
Scalability of flying photonic quantum systems in generating quantum entanglement offers a potential for implementing large-scale fault-tolerant quantum computation, especially by…
Hardness of efficiently generating ground states in postselected quantum computation
Yuki Takeuchi, Yasuhiro Takahashi, Seiichiro Tani
Generating ground states of any local Hamiltonians seems to be impossible in quantum polynomial time. In this paper, we give evidence for the impossibility by applying an argument…
Classically Simulating Quantum Circuits with Local Depolarizing Noise
Yasuhiro Takahashi, Yuki Takeuchi, Seiichiro Tani
We study the effect of noise on the classical simulatability of quantum circuits defined by computationally tractable (CT) states and efficiently computable sparse (ECS) operations…