Does Excess Quantum Noise Exist in Spontaneous Processes?
A. Aiello, M. P. van Exter, G. Nienhuis, J. P. Woerdman
Abstract
We investigate the role of excess quantum noise in type-II degenerate parametric down conversion in a cavity with non-orthogonal polarization eigenmodes. Since only two modes are involved we are able to derive an analytical expression for the twin-photon generation rate measured outside the cavity as a function of the degree of mode nonorthogonality. Contrary to recent claims we conclude that there is no evidence of excess quantum noise for a parametric amplifier working so far below threshold that spontaneous processes dominate.
Create a lesson
Related papers
Gaussian entanglement and quantum communication: geodesic optimization and multimode bounds
Hemant K. Mishra, Mark M. Wilde
On the coincidence of discrete and continuous definitions of Entanglement of Formation
Haobo Ma, Maksim E. Shirokov, Wenlin Zhang
EFI1PRS
Rishabh Batra
Relative-Entropy Geometry and Convergence in Nonconvex Wiretap Optimization
Farzin Salek, Masahito Hayashi
Deterministic and programmable generation of mechanical multipartite entangled states
Isabelle Franzen, Max-Emanuel Kern, Q. Rumman Rahman et al.
Quantum-enhanced mechanical sensing with machine-learning estimation
Finn Müßigbrodt, Andraž Omahen, Q. Rumman Rahman et al.