Gaussian State Description of Squeezed Light
arXiv:quant-ph/0505148 · doi:10.1103/PhysRevA.72.053812
Abstract
We present a Gaussian state description of squeezed light generated in an optical parametric oscillator. Using the Gaussian state description we describe the dynamics of the system conditioned on homodyne detection on the output field. Our theory shows that the output field is squeezed only if observed for long enough times or by a detector with finite bandwidth. As an application of the present approach we consider the use of finite bandwidth squeezed light together with a sample of spin-polarized atoms to estimate a magnetic field.
10 pages, 8 figures, submitted to Physical Review A
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- Nondegenerate parametric down conversion in coherently prepared two-level atomic gas
- Single-Photon-Subtracted-Squeezed-Vacuum-State Based Postselected Weak Measurement and its Applications
- Stabilizing Preparation of Quantum Gaussian States via Continuous Measurement
- Amplitude-squared squeezing of Schrödinger cat states via Postselected von Neumann Measurement