Entangled Matter-waves for Quantum Enhanced Sensing
arXiv:2406.13616 · doi:10.1103/PhysRevA.110.L041301
Abstract
The ability to create and harness entanglement is crucial to the fields of quantum sensing and simulation, and ultracold atom-cavity systems offer pristine platforms for this undertaking. Here, we present a method for creating and controlling entanglement between solely the motional states of atoms in a cavity without the need for electronic interactions. We show this interaction arises from a general atom-cavity model, and discuss the role of the cavity frequency shift in response to atomic motion. This cavity response leads to many different squeezing interactions between the atomic momentum states. Furthermore, we show that when the atoms form a density grating, the collective motion leads to one-axis twisting, a many-body energy gap, and metrologically useful entanglement even in the presence of noise. Noteably, an experiment has recently demonstrated this regime leads to an effective momentum-exchange interaction between atoms in a common cavity mode. This system offers a highly tunable, many-body quantum sensor and simulator.
References in corpus (14)
- Resolving the gravitational redshift within a millimeter atomic sample
- Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED
- Distributed quantum sensing with a mode-entangled network of spin-squeezed atomic states
- Entanglement-Enhanced Matter-Wave Interferometry in a High-Finesse Cavity
- Squeezing on momentum states for atom interferometry
- Probing Complex-energy Topology via Non-Hermitian Absorption Spectroscopy in a Trapped Ion Simulator
- Spatially tunable spin interactions in neutral atom arrays
- Experimental Realization of the Rabi-Hubbard Model with Trapped Ions
- Optimal Generators for Quantum Sensing
- On the Dynamics of the Tavis-Cummings Model
- Beyond one-axis twisting: Simultaneous spin-momentum squeezing
- Quantum hybrid optomechanical inertial sensing
- Adiabatic Control of Decoherence-Free-Subspaces in an Open Collective System
- Speeding Up Squeezing with a Periodically Driven Dicke Model