New quantumness domains through generalized squeezed states
arXiv:1910.14550 · doi:10.1088/1751-8121/ab4c7f
Abstract
Current definitions of both squeezing operator and squeezed vacuum state are critically examined on the grounds of consistency with the underlying su(1,1) algebraic structure. Accordingly, the generalized coherent states for su(1,1) in its Schwinger two-photon realization are proposed as squeezed states. The physical implication of this assumption is that two additional degrees of freedom become available for the control of quantum optical systems. The resulting physical predictions are evaluated in terms of quadrature squeezing and photon statistics, while the application to a Mach-Zehnder interferometer is discussed to show the emergence of nonclassical regions, characterized by negative values of Mandel's parameter, which cannot be anticipated by the current formulation, and then outline future possible use in quantum technologies.
References in corpus (10)
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
- Squeezed states of light and their applications in laser interferometers
- Multiphoton Quantum Optics and Quantum State Engineering
- Experimental demonstration of a squeezing enhanced power recycled Michelson interferometer for gravitational wave detection
- Optimal quantum estimation of loss in bosonic channels
- Testing Quantum Gravity by Quantum Light
- Photon statistics characterization of a single photon source
- Coherent states in Quantum Optics: An oriented overview
- Phase estimation with squeezed single photons