Affiliation:
1. Department of Physics, MIT-Harvard Center for Ultracold Atoms and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Abstract
Recent developments in atomic physics have enabled the experimental generation of many-body entangled states to boost the performance of quantum sensors beyond the Standard Quantum Limit (SQL). This limit is imposed by the inherent projection noise of a quantum measurement. In this Perspective article, we describe the commonly used experimental methods to create many-body entangled states to operate quantum sensors beyond the SQL. In particular, we focus on the potential of applying quantum entanglement to state-of-the-art optical atomic clocks. In addition, we present recently developed time-reversal protocols that make use of complex states with high quantum Fisher information without requiring sub-SQL measurement resolution. We discuss the prospects for reaching near-Heisenberg limited quantum metrology based on such protocols.
Funder
NSF Center for Ultracold Atoms
Center for Ultracold Atoms, Massachusetts Institute of Technology
Defense Sciences Office, DARPA
Office of Naval Research
NSF Division of Physics
NSF QLCI-CI QSEnSE
Subject
Physics and Astronomy (miscellaneous)
Cited by
8 articles.
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