7 papers
Quantum-enhanced sensing of displacements and electric fields with large trapped-ion crystals
Kevin A. Gilmore, Matthew Affolter, Robert J. Lewis-Swan +4
Developing the isolation and control of ultracold atomic systems to the level of single quanta has led to significant advances in quantum sensing, yet demonstrating a quantum advan…
Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes
R. J. Lewis-Swan, S. R. Muleady, D. Barberena +2
We theoretically study the dynamical phase diagram of the Dicke model in both classical and quantum limits using large, experimentally relevant system sizes. Our analysis elucidate…
A cavity-QED quantum simulator of dynamical phases of a BCS superconductor
Robert J. Lewis-Swan, Diego Barberena, Julia R. K. Cline +3
We propose to simulate dynamical phases of a BCS superconductor using an ensemble of cold atoms trapped in an optical cavity. Effective Cooper pairs are encoded via internal states…
Atom-light entanglement for precise field sensing in the optical domain
Diego Barberena, Robert J. Lewis-Swan, Ana Maria Rey +1
Macroscopic arrays of cold atoms trapped in optical cavities can reach the strong atom-light collective coupling regime thanks to the simultaneous interactions of the cavity mode w…
Single-Particle Decoherence Can Improve Spin-Squeezing Generated In Collective Dynamics
K. Tucker, D. Barberena, R. J. Lewis-Swan +3
We study the generation of spin-squeezing in arrays of long-lived dipoles subject to collective emission, coherent drive, elastic interactions, and spontaneous emission. Counter-in…
A cavity-QED protocol for precise field sensing in the optical domain
Robert J. Lewis-Swan, D. Barberena, Juan A. Muniz +4
In the context of quantum metrology, optical cavity-QED platforms have primarily been focused on the generation of entangled atomic spin states useful for next-generation frequency…