Observation of ultra-strong spin-motion coupling for cold atoms in optical microtraps
arXiv:1809.02488 · doi:10.1103/PhysRevLett.121.253603
Abstract
We realize a mechanical analogue of the Dicke model, achieved by coupling the spin of individual neutral atoms to their quantized motion in an optical trapping potential. The atomic spin states play the role of the electronic states of the atomic ensemble considered in the Dicke model, and the in-trap motional states of the atoms correspond to the states of the electromagnetic field mode. The coupling between spin and motion is induced by an inherent polarization gradient of the trapping light fields, which leads to a spatially varying vector light shift. We experimentally show that our system reaches the ultra-strong coupling regime, i.e., we obtain a coupling strength which is a significant fraction of the trap frequency. Moreover, with the help of an additional light field, we demonstrate the in-situ tuning of the coupling strength. Beyond its fundamental interest, the demonstrated one-to-one mapping between the physics of optically trapped cold atoms and the Dicke model paves the way for implementing protocols and applications that exploit extreme coupling strengths.
References in corpus (34)
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Optical interface created by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber
- Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Quantum Chaos Triggered by Precursors of a Quantum Phase Transition: The Dicke Model
- Deep Strong Coupling Regime of the Jaynes-Cummings model
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
- Dissipation and Ultrastrong Coupling in Circuit QED
- Qubit-oscillator systems in the ultrastrong-coupling regime and their potential for preparing nonclassical states
- Ultrastrong coupling regime of cavity QED with phase-biased flux qubits
- Cooling a single atom in an optical tweezer to its quantum ground state
- Multiple Rabi Splittings under Ultra-Strong Vibrational Coupling
- Coherence and Raman sideband cooling of a single atom in an optical tweezer
- Quantum vacuum radiation spectra from a semiconductor microcavity with a time-modulated vacuum Rabi frequency
- Terahertz light-matter interaction beyond unity coupling strength
- Collective, Coherent, and Ultrastrong Coupling of 2D Electrons with Terahertz Cavity Photons
- Ultrafast Quantum Gates in Circuit QED
- Experimentally simulating the dynamics of quantum light and matter at ultrastrong coupling
- A Single Photon Can Simultaneously Excite Two or More Atoms
- Analog quantum simulation of the Rabi model in the ultra-strong coupling regime
- Quantum simulation of the quantum Rabi model in a trapped ion
- Light-matter excitations in the ultra-strong coupling regime
- Semi-classical and quantum Rabi models: in celebration of 80 years
- Protected quantum computation with multiple resonators in ultrastrong coupling circuit QED
- Spectral Classification of Coupling Regimes in the Quantum Rabi Model
- Magic-zero wavelengths of alkali-metal atoms and their applications
- Scalable quantum memory in the ultrastrong coupling regime
- Quantum state tomography by continuous measurement and compressed sensing
- Microwave control of atomic motional states in a spin-dependent optical lattice
- Near-ground-state cooling of atoms optically trapped 300nm away from a hot surface
- Cold-atom based implementation of the quantum Rabi model
- Fictitious magnetic field gradients in optical microtraps as an experimental tool for interrogating and manipulating cold atoms
Cited by in corpus (25)
- Critical Quantum metrology with a finite-component quantum phase transition
- Dynamic framework for criticality-enhanced quantum sensing
- Atomic spin-controlled non-reciprocal Raman amplification of fibre-guided light
- Collectively enhanced chiral photon emission from an atomic array near a nanofiber
- Understanding and Improving Critical Metrology. Quenching Superradiant Light-Matter Systems Beyond the Critical Point
- Dissipation-induced bistability in the two-photon Dicke model
- Exponential precision by reaching a quantum critical point
- Quantum Rabi dynamics of trapped atoms far in the deep strong coupling regime
- Imaging and localizing individual atoms interfaced with a nanophotonic waveguide
- Heating in Nanophotonic Traps for Cold Atoms
- Waveguide QED with Quadratic Light-Matter Interactions
- Inverted harmonic oscillator dynamics of the nonequilibrium phase transition in the Dicke model
- Two-photon-interaction effects in the bad-cavity limit
- Chiral Light--Matter Interaction Beyond the Rotating-Wave Approximation
- Preparation of Rb and Cs in the motional ground state of a single optical tweezer
- Non-Gaussian superradiant transition via three-body ultrastrong coupling
- Theory of waveguide-QED with moving emitters
- Analytical solution for the spectrum of two ultracold atoms in a completely anisotropic confinement
- Feedback-cooling the fundamental torsional mechanical mode of a tapered optical fiber to 30 mK
- Periodic quantum Rabi model with cold atoms at deep strong coupling
- Quantum phases transition revealed by the exceptional point in Hopfield-Bogoliubov matrix
- Quantum Features of the Thermal Two-Qubit Quantum Rabi Model in Ultra- and Deep-Strong Regimes
- Phase Transitions in Light-Matter Systems for Quantum Sensing
- Measuring fluorescence into a nanofiber by observing field quadrature noise
- Observation of oscillatory Raman gain associated with two-photon Rabi oscillations of nanofiber-coupled atoms