Entangled Nonorthogonal States and Their Decoherence Properties
Osamu Hirota, S. J. van Enk, Kazuo Torii Nakamura +2 more
This paper presents properties of the so-called quasi-Bell states: entangled states written as superpositions of nonorthogonal states. It is shown that a special class of those states, namely entangled coherent states, are more robust against decoherence due to photon absorption than the standard bi-photon Bell states.
arXiv:quant-ph/0101096•Jan 19, 2001•21 citations