Year: 2024
Type: article
Abstract: We study the combined effects of measurements and unitary evolution on the preparation of spin squeezing in an ensemble of atoms interacting with a single electromagnetic field mode inside a cavity. We derive simple criteria that determine the conditions at which measurement based entanglement generation overperforms unitary protocols. We include all relevant sources of decoherence and study both their effect on the optimal spin squeezing and the overall size of the measurement noise, which limits the dynamical range of quantum-enhanced phase measurements. Our conclusions are relevant for state-of-the-art atomic clocks that aim to operate below the standard quantum limit. Published by the American Physical Society 2024
Source: Physical Review Research
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Awards: G1523888516, G2279853913, Center: JILA-PFC: Comprehension and Control of Emerging Complexity at the Quantum Frontier, G3392305090, G3515266184, G3597801169, Dynamics of Entanglement in a Trapped Ion Quantum Magnet, G3997690, JILA PFC: Measurement, Manipulation, and Meaning at the Quantum Frontier, QLCI-CI: NSF Quantum Leap Challenge Institute for Enhanced Sensing and Distribution Using Correlated Quantum States, G608057831, G657448715, G6746142562, G6747958498, G6970034002, G7002604833, G7172419705, G7452299184, G8415477955
OpenAlex ID: W4401639096