Entanglement-enhanced optical atomic clocks
Name
210502_1_5.0121372.pdf
Description
Published version
Size
1.73 MB
Format
Adobe PDF
Checksum (MD5)
d88418cf3130cfb3d3a61b9c11e82659
Author(s)
Colombo, Simone
Pedrozo-Peñafiel, Edwin
Vuletić, Vladan
Date Issued
November 21, 2022
Journal
Applied Physics Letters
Publisher
AIP Publishing
Citation
Simone Colombo, Edwin Pedrozo-Peñafiel, Vladan Vuletić; Entanglement-enhanced optical atomic clocks. Appl. Phys. Lett. 21 November 2022; 121 (21): 210502.
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT-Harvard Center for Ultracold Atoms
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/5.0121372
