The role of auxiliary photons in state discrimination with linear optical devices
- Autori: Carollo, A; Palma, GM
- Anno di pubblicazione: 2002
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Optical linear elements; Photon states, quantum optics
- OA Link: http://hdl.handle.net/10447/56105
Abstract
The role of auxiliary photons in the problem of identifying a state secretly chosen from a given set of L-photon states is analysed. It is shown that auxiliary photons do not increase the ability to discriminate such states by means of a global measurement using only optical linear elements, conditional transformation and auxiliary photons