Physics – Quantum Physics
Scientific paper
2008-11-02
Physics
Quantum Physics
4 pages, 3 figures, appear in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.101.233602
Squeezed vacuum field can be amplified or deamplified when it is injected, as the signal beam, into a phase-sensitive optical parametric amplifier (OPA) inside an optical cavity. The spectral features of the reflected quantized signal field are controlled by the relative phase between the injected squeezed vacuum field and the pump field for the OPA. The experimental results demonstrate coherent phenomena of OPA in the quantum regime, and show phase-sensitive manipulations of quantum fluctuations for quantum information processing.
Gao Feng
Xiao Min
Ye Chenguang
Zhang Jing
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