120 citations · 570 across the 31 of their papers we have counts for
31 papers
Center Preserving Automorphisms of Finite Heisenberg Group over
T. Hashimoto, M. Horibe, A. Hayashi
We investigate the group structure of center-preserving automorphisms of the finite Heisenberg group over with extension, which arises in finite-dimensional qu…
Physical symmetries and gauge choices in the Landau problem
Masashi Wakamatsu, Akihisa Hayashi
Due to a special nature of the Landau problem, in which the magnetic field is uniformly spreading over the whole two-dimensional plane, there necessarily exist three conserved quan…
Simple criterion for local distinguishability of generalized Bell states in prime dimension
T. Hashimoto, M. Horibe, A. Hayashi
Local distinguishability of sets of generalized Bell states (GBSs) is investigated. We first clarify the conditions such that a set of GBSs can be locally transformed to a certain…
Quantum-state comparison and discrimination
A. Hayashi, T. Hashimoto, M. Horibe
We investigate the performance of discrimination strategy in the comparison task of known quantum states. In the discrimination strategy, one infers whether or not two quantum syst…
Minimum uncertainty states and completeness of non-negative quasi probability of finite-dimensional quantum systems
T. Hashimoto, A. Hayashi, M. Horibe
We construct minimum-uncertainty states and a non-negative quasi probability distribution for quantum systems on a finite-dimensional space. We reexamine the theorem of Massar and…
Sp(2,) invariant Wigner function on even dimensional vector space
Minoru Horibe, Takaaki Hashimoto, Akihisa Hayashi
We construct the quasi probability distribution on even dimensional vector space with marginality and invariance under the transformation induced by projective representat…