Disproving the conjecture on structural physical approximation to optimal decomposable entanglement witnesses
Dariusz ChruścińskiGniewomir Sarbicki
所有作者
Dariusz ChruścińskiGniewomir Sarbicki
文献摘要
We disprove the conjecture that structural physical approximations to optimal
entanglement witnesses are separable states. The conjecture holds true for
extremal decomposable entanglement witnesses.