109 citations · 277 across the 16 of their papers we have counts for
16 papers
Violations of the Leggett-Garg inequality for coherent and cat states
Hiroo Azuma, Masashi Ban
We show that in some cases the coherent state can have a larger violation of the Leggett-Garg inequality (LGI) than the cat state by numerical calculations. To achieve this result,…
The intercept/resend and translucent attacks on the quantum key distribution protocol based on the pre- and post-selection effect
Hiroo Azuma, Masashi Ban
We investigate the security against the intercept/resend and translucent attacks on the quantum key distribution protocol based on the pre- and post-selection effect. In 2001, Bub…
The Leggett-Garg inequalities and the relative entropy of coherence in the Bixon-Jortner model
Hiroo Azuma, Masashi Ban
We investigate the Leggett-Garg inequalities and the relative entropy of coherence in the Bixon-Jortner model. First, we analytically derive the general solution of the Bixon-Jortn…
Equivalence of a compressible inviscid flow and the Bloch vector under the thermal Jaynes-Cummings model
Hiroo Azuma, Masashi Ban
In this paper, we show that the time evolution of the Bloch vector governed by the thermal Jaynes-Cummings model is equivalent to a compressible inviscid flow with zero vorticity.…
A thermal coherent state defined with the Lie-Trotter product formula
Hiroo Azuma, Masashi Ban
In this paper, we investigate a thermal coherent state defined with the Lie-Trotter product formula under the formalism of the thermo field dynamics. In the definition of our therm…
Quasiperiodicity in time evolution of the Bloch vector under the thermal Jaynes-Cummings model
Hiroo Azuma, Masashi Ban
We study a quasiperiodic structure in the time evolution of the Bloch vector, whose dynamics is governed by the thermal Jaynes-Cummings model (JCM). Putting the two-level atom into…