Optical homodyne detection in view of joint probability distribution
arXiv:1007.1596 · doi:10.1103/PhysRevA.82.032102
Abstract
Optical homodyne detection is examined in view of joint probability distribution. It is usually discussed that the relative phase between independent laser fields are localized by photon-number measurements in interference experiments such as homodyne detection. This provides reasoning to use operationally coherent states for laser fields in the description of homodyne detection and optical quantum-state tomography. Here, we elucidate these situations by considering the joint probability distribution and the invariance of homodyne detection under the phase transformation of optical fields.
8 pages, 2 figures; REVTeX 4.1