Quantum Inspired Microwave Phase Super-Resolution at Room Temperature
- URL: http://arxiv.org/abs/2401.05026v1
- Date: Wed, 10 Jan 2024 09:23:02 GMT
- Title: Quantum Inspired Microwave Phase Super-Resolution at Room Temperature
- Authors: Leonid Vidro, Liran Shirizly, Naftali Kirsh, Nadav Katz, Hagai S.
Eisenberg
- Abstract summary: We realize room-temperature microwave frequency super-resolved phase measurements with trillions of photons.
We achieve super-resolution up to 1200 times better than the wavelength with 25ns integration time and 56dB SNR.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum metrology has been shown to surpass classical limits of correlation,
resolution, and sensitivity. It has been introduced to interferometric Radar
schemes, with intriguing preliminary results. Even quantum-inspired detection
of classical signals may be advantageous in specific use cases. Following ideas
demonstrated so far only in the optical domain, where practically no thermal
background photons exist, we realize room-temperature microwave frequency
super-resolved phase measurements with trillions of photons, while saturating
the Cramer-Rao bound of sensitivity. We experimentally estimate the
interferometric phase using the expectation value of the Parity operator by two
methods. We achieve super-resolution up to 1200 times better than the
wavelength with 25ns integration time and 56dB SNR.
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