Bosonic Pair Production and Squeezing for Optical Phase Measurements in Long-Lived Dipoles Coupled to a Cavity.

Autor: Sundar B; Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA.; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Barberena D; Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA.; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Orioli AP; Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA.; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Chu A; Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA.; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Thompson JK; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Rey AM; Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA.; JILA, NIST, Department of Physics, University of Colorado, Boulder, Colorado 80309, USA., Lewis-Swan RJ; Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, Norman, Oklahoma 73019, USA.; Center for Quantum Research and Technology, The University of Oklahoma, Norman, Oklahoma 73019, USA.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2023 Mar 17; Vol. 130 (11), pp. 113202.
DOI: 10.1103/PhysRevLett.130.113202
Abstrakt: We propose to simulate bosonic pair creation using large arrays of long-lived dipoles with multilevel internal structure coupled to an undriven optical cavity. Entanglement between the atoms, generated by the exchange of virtual photons through a common cavity mode, grows exponentially fast and is described by two-mode squeezing of effective bosonic quadratures. The mapping between an effective bosonic model and the natural spin description of the dipoles allows us to realize the analog of optical homodyne measurements via straightforward global rotations and population measurements of the electronic states, and we propose to exploit this for quantum-enhanced sensing of an optical phase (common and differential between two ensembles). We discuss a specific implementation based on Sr atoms and show that our sensing protocol is robust to sources of decoherence intrinsic to cavity platforms. Our proposal can open unique opportunities for next-generation optical atomic clocks.
Databáze: MEDLINE
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