78 citations · 109 across the 2 of their papers we have counts for
4 papers
Finding a maximally correlated state - Simultaneous Schmidt decomposition of bipartite pure states
Tohya Hiroshima, Masahito Hayashi
We consider a bipartite mixed state of the form, $ρ=\sum_{α, β=1}^{l}a_{αβ} | ψ_α> < ψ_ β}| $, where are normalized bipartite state vectors, and matrix is posit…
Majorization criterion for distillability of a bipartite quantum state
Tohya Hiroshima
Bipartite quantum states are classified into three categories: separable states, bound entangled states, and free entangled states. It is of great importance to characterize these…
Restoration of Entanglement by Spectral Filters
K. Usami, Y. Nambu, S. Ishizaka +4
We experimentally demonstrate that entanglement of bi-photon polarization state can be restored by spectral filters. This restoration procedure can be viewed as a new class of quan…
Maximally entangled mixed states in two qubits
Satoshi Ishizaka, Tohya Hiroshima
We propose novel mixed states in two qubits, ``maximally entangled mixed states'', which have a property that the amount of entanglement of these states cannot be increased further…