Three ways of achieving quantum advantages in sensing

by Dr. Eli Cohen

at Quantum optics seminar

Wed, 15 Mar 2023, 16:00
ZOOM only



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Many sensing tasks enjoy uniquely quantum features making quantum devices very appealing for fundamental research and technological applications.
In this talk I will describe three features of this sort which we recently used in order to enhance sensing capabilities:
1. Wave-particle duality allowing beneficial atomic wavepacket shaping [1].
2. Set-coherence giving rise to amplified quantum metrology, including robustness to noise and decoherence [2-4].
3. Continuous variables entanglement/squeezing leading to phase sensitivity beyond the shot-noise limit [5-7].
[1] Amit G., Japha Y., Shushi T., Folman R., Cohen E., Countering a fundamental law of attraction with quantum wavepacket engineering, Phys. Rev. Research 5, 013150 (2023).
[2] Schwartzman-Nowik Z., Aharonov D., Cohen E., Quantum metrology with weak Measurements - What can be done when the noise channel acts on the measured system?, forthcoming.
[3] Wagner R. et al., Quantum circuits measuring weak values and Kirkwood-Dirac quasiprobability distributions, with applications, arXiv:2302.00705.
[4] Virzi S. et al., Single-pair measurement of the Bell parameter, arXiv:2303.04787.
[5] Bello L., Michael Y., Rosenbluh M., Cohen E., Pe'er A., Complex two-mode quadratures - a unified formalism for continuous-variable quantum optics, Opt. Express 29, 41282-41302 (2021).
[6] Michael Y., Jonas I., Bello L., Meller M.E., Cohen E., Rosenbluh M., Pe'er A., Augmenting the sensing performance of entangled photon pairs through asymmetry, Phys. Rev. Lett. 127, 173603 (2021).
[7] Meir S., Tamir Y., Duadi H., Cohen E., Fridman M., Ultrafast Temporal SU(1,1) interferometer, under review.

Created on 12-03-2023 by Folman, Ron (folman)
Updaded on 12-03-2023 by Folman, Ron (folman)