2 citations · 2 across the 5 of their papers we have counts for
6 papers
Conditions for Global Optimality in Quantum Arimoto-Blahut Algorithms
Geng Liu, Masahito Hayashi
Generalized Arimoto--Blahut (AB) algorithms are widely used in information theory and quantum optimization, but monotonic objective decrease and numerical stabilization do not guar…
Efficient Verification of Entangled Measurements with Local States
Kun Wang, Masahito Hayashi
We develop a framework for quantum measurement verification (QMV) using only local state preparations. For locally transitive and irreducible projective measurements, we prove that…
Characterization-free classification and identification of the environment between two quantum players
Masahito Hayashi, Longyang Cao, Baichu Yu +1
Identifying the causal structure of quantum channels is essential for verifying quantum networks and certifying quantum resources. We introduce a characterization-free protocol ena…
Trajectory-Wise Certification for Vector-Field Mirror Descent with Deterministic Finite Differences
Masahito Hayashi
We study mirror descent in which the objective gradient is replaced by a general vector field. Since such a field does not automatically relate the mirror update to the objective g…
Generalized Quantum Stein's Lemma for Classical-Quantum Dynamical Resources
Masahito Hayashi, Hayata Yamasaki
Channel conversion constitutes a pivotal paradigm in information theory and its applications to quantum physics, providing a unified problem setting that encompasses celebrated res…
Generalized Quantum Stein's Lemma and Second Law of Quantum Resource Theories
Masahito Hayashi, Hayata Yamasaki
The second law of thermodynamics is the cornerstone of physics, characterizing the convertibility between thermodynamic states through a single function, entropy. Given the univers…