James K. Thompson
University of Colorado Boulder
Adiabatic processOpticsQuantum entanglementPhysicsLaser linewidthIonPhotonQuantum limitAtomic physicsOptical cavityMaterials scienceCondensed matter physicsRaman laserSpectroscopyStrontiumLaserQuantum mechanicsSpin-½QuantumLaser cooling
Publications 158
#1Graham P. GreveH-Index: 4
#2Chengyi LuoH-Index: 1
Last. James K. ThompsonH-Index: 26
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Entanglement is a fundamental resource that allows quantum sensors to surpass the standard quantum limit set by the quantum collapse of independent atoms. Collective cavity-QED systems have succeeded in generating large amounts of directly observed entanglement involving the internal degrees of freedom of laser-cooled atomic ensembles. Here we demonstrate cavity-QED entanglement of external degrees of freedom to realize a matter-wave interferometer of 700 atoms in which each individual atom fall...
#1A. Piñeiro OrioliH-Index: 2
#2James K. ThompsonH-Index: 26
Last. Ana Maria ReyH-Index: 62
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We investigate the collective decay dynamics of atoms with a generic multilevel structure (angular momenta F\leftrightarrow F' coupled to two light modes of different polarization inside a cavity. In contrast to two-level atoms, we find that multilevel atoms can harbour eigenstates that are perfectly dark to cavity decay even within the subspace of permutationally symmetric states (collective Dicke manifold). The dark states arise from destructive interference between different internal trans...
#1Juan A. Muniz (CU: University of Colorado Boulder)H-Index: 8
#2Dylan Young (CU: University of Colorado Boulder)H-Index: 5
Last. James K. Thompson (CU: University of Colorado Boulder)H-Index: 26
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#1John P. BartolottaH-Index: 4
#2Simon B. JägerH-Index: 8
Last. Murray HollandH-Index: 44
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In the field of light-matter interactions, it is often assumed that a classical light field that interacts with a quantum particle remains almost unchanged and thus contains nearly no information about the manipulated particles. To investigate the validity of this assumption, we develop and theoretically analyze a simple Gedankenexperiment which involves the interaction of a coherent state with a quantum particle in an optical cavity. We quantify the resulting alteration of the light field by me...
#2Diego Barberena (CU: University of Colorado Boulder)H-Index: 6
Last. Ana Maria Rey (CU: University of Colorado Boulder)H-Index: 62
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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 of the atoms and attractive interactions are realized via the exchange of virtual photons between atoms coupled to a common cavity mode. Control of the interaction strength combined with a tunable dispersion relation of the effective Cooper pairs allows exploration of the full dynamical phase diagram of the BCS model,...
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