Bosonic pair production and squeezing for optical phase measurements in long-lived dipoles coupled to a cavity

Abstract

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.

5 pages + 3 figures + references + supplement; Updated parts of main text and supplement

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Cited by in corpus (11)

• Manipulating growth and propagation of correlations in dipolar multilayers: From pair production to bosonic Kitaev models
• Squeezing multilevel atoms in dark states via cavity superradiance
• Entanglement in an expanding toroidal Bose-Einstein condensate
• Kerr-magnon-assisted asymptotic stationary photon-phonon squeezing
• Two-mode Squeezing in Floquet Engineered Power-law Interacting Spin Models
• Momentum-selective pair creation of spin excitations in dipolar bilayers
• Reconfigurable dissipative entanglement between many spin ensembles: from robust quantum sensing to many-body state engineering
• Lieb-Mattis states for robust entangled differential phase sensing
• Dynamically stable two-mode squeezing in cavity optomechanics
• Probing quantum phase transition in a staggered Bosonic Kitaev chain via layer-resolved localization-delocalization transition
• Nonequilibrium Critical Scaling of a Squeezing Phase Transition