Nonlinear interferometry in all spatiotemporal degrees of freedom
Filippus S. Roux
TL;DR
This paper investigates how spatiotemporal degrees of freedom influence the performance of SU(1,1) interferometers, providing a comprehensive phase sensitivity analysis useful for quantum metrology.
Contribution
It introduces a Wigner functional approach to analyze the impact of all spatiotemporal degrees of freedom on SU(1,1) interferometry performance.
Findings
Phase sensitivity depends on spatiotemporal parameters.
Experimental scale parameters significantly affect interferometer performance.
The approach aids in optimizing quantum metrology setups.
Abstract
The effects of the spatiotemporal degrees of freedom on the practical implementation of an SU(1,1) interferometry is investigated. A recently developed Wigner functional approach is used to obtain the phase sensitivity of such an SU(1,1) interferometry in terms of all the spatiotemporal degrees of freedom. It reveals how experimental scale parameters affect the performance of the interferometer. The analysis provides information that would be useful for quantum metrology applications.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Quantum Information and Cryptography · Quantum optics and atomic interactions