Measurement-induced quantum operations on multiphoton states

Details Measurement-induced quantum operations on multiphoton states Measurement-induced quantum operations on multiphoton states

2010-12-21

arxiv.org/abs/1012.4602v1

Phys. Rev. A 82, 062319 (2010)

Physics

Quantum Physics

13 pages, 13 figures

Scientific paper

10.1103/PhysRevA.82.062319

We investigate how multiphoton quantum states obtained through optical parametric amplification can be manipulated by performing a measurement on a small portion of the output light field. We study in detail how the macroqubit features are modified by varying the amount of extracted information and the strategy adopted at the final measurement stage. At last the obtained results are employed to investigate the possibility of performing a microscopic-macroscopic non-locality test free from auxiliary assumptions.

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