394 citations · 7.2k across the 232 of their papers we have counts for
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Optimal performance of generalized heat engines with finite-size baths of arbitrary multiple conserved quantities beyond i.i.d. scaling
Kosuke Ito, Masahito Hayashi
In quantum thermodynamics, effects of finiteness of the baths have been less considered. In particular, there is no general theory which focuses on finiteness of the baths of multi…
Minimum Rates of Approximate Sufficient Statistics
Masahito Hayashi, Vincent Y. F. Tan
Given a sufficient statistic for a parametric family of distributions, one can estimate the parameter without access to the data. However, the memory or code size for storing the s…
Discrimination power of a quantum detector
Christoph Hirche, Masahito Hayashi, Emilio Bagan +1
We investigate the ability of a quantum measurement device to discriminate two states or, generically, two hypothesis. In full generality, the measurement can be performed a number…
Verifiable fault-tolerance in measurement-based quantum computation
Keisuke Fujii, Masahito Hayashi
Quantum systems, in general, output data that cannot be simulated efficiently by a classical computer, and hence is useful for solving certain mathematical problems and simulating…
Information-theoretic Physical Layer Security for Satellite Channels
Angeles Vazquez-Castro, Masahito Hayashi
Shannon introduced the classic model of a cryptosystem in 1949, where Eve has access to an identical copy of the cyphertext that Alice sends to Bob. Shannon defined perfect secrecy…
Optimal compression for identically prepared qubit states
Yuxiang Yang, Giulio Chiribella, Masahito Hayashi
We establish the ultimate limits to the compression of sequences of identically prepared qubits. The limits are determined by Holevo's information quantity and are attained through…