120 citations · 652 across the 39 of their papers we have counts for
39 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…
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…
Quantization of hypercharge in gauge groups locally isomorphic but globally nonisomorphic to SU(3)_c X SU(2)_L X U(1)_Y
Takaaki Hashimoto, Mamoru Matsunaga, Kenta Yamamoto
In the Standard Model the hypercharges of quarks and leptons are not determined by the gauge group itself. In a recent paper [C. Hattori et al. Phys. Rev. D83, 015009 (2011)] it is…
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…