32 citations · 118 across the 13 of their papers we have counts for
13 papers
Entanglement of Electrons Field-Emitted from a Superconductor
Kazuya Yuasa, Paolo Facchi, Rosario Fazio +4
Under appropriate circumstances the electrons emitted from a superconducting tip can be entangled. We analyze these nonlocal correlations by studying the coincidences of the field-…
Lateral Effects in Fermion Antibunching
K. Yuasa, P. Facchi, H. Nakazato +3
Lateral effects are analyzed in the antibunching of a beam of free non-interacting fermions. The emission of particles from a source is dynamically described in a 3D full quantum f…
Decrease of entanglement by local operations in the Dür-Cirac method
Yukihiro Ota, Motoyuki Yoshida, Ichiro Ohba
One cannot always obtain information about entanglement by the Dür-Cirac (DC) method. The impracticality is attributed to the decrease of entanglement by local operations in the DC…
Attainable entanglement of unitary transformed thermal states in liquid-state nuclear magnetic resonance with the chemical shift
Yukihiro Ota, Shuji Mikami, Motoyuki Yoshida +1
Recently, Yu, Brown, and Chuang [Phys. Rev. A {\bf 71}, 032341 (2005)] investigated the entanglement attainable from unitary transformed thermal states in liquid-state nuclear magn…
On the Assumption of Initial Factorization in the Master Equation for Weakly Coupled Systems II: Solvable Models
K. Yuasa, S. Tasaki, P. Facchi +4
We analyze some solvable models of a quantum mechanical system in interaction with a reservoir when the initial state is not factorized. We apply Nakajima-Zwanzig's projection meth…
On the Assumption of Initial Factorization in the Master Equation for Weakly Coupled Systems I: General Framework
S. Tasaki, K. Yuasa, P. Facchi +4
We analyze the dynamics of a quantum mechanical system in interaction with a reservoir when the initial state is not factorized. In the weak-coupling (van Hove) limit, the dynamics…