Nano-Scale `Dark State' Optical Potentials for Cold Atoms

Abstract

We discuss generation of subwavelength optical barriers on the scale of tens of nanometers, as conservative optical potentials for cold atoms. These arise from non-adiabatic corrections to Born-Oppenheimer potentials from dressed `dark states' in atomic $\Lambda$-configurations. We illustrate the concepts with a double layer potential for atoms obtained from inserting an optical subwavelength barrier into a well generated by an off-resonant optical lattice, and discuss bound states of pairs of atoms interacting via magnetic dipolar interactions. The subwavelength optical barriers represent an optical `Kronig-Penney' potential. We present a detailed study of the bandstructure in optical `Kronig-Penney' potentials, including decoherence from spontaneous emission and atom loss to open `bright' channels.

13 pages, 9 figures, to appear in Physical Review Letters

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Cited by in corpus (51)

• Dipolar physics: A review of experiments with magnetic quantum gases
• Atomtronic circuits: from many-body physics to quantum technologies
• Dark state optical lattice with sub-wavelength spatial structure
• Quantum sensing with a single-qubit pseudo-Hermitian system
• Engineering Non-Hermitian Skin Effect with Band Topology in Ultracold Gases
• Subwavelength-width optical tunnel junctions for ultracold atoms
• Topological quantum critical points in the extended Bose-Hubbard model
• A Wavefunction Microscope for Ultracold Atoms
• Realization of a fractional period adiabatic superlattice
• Theory of a Quantum Scanning Microscope for Cold Atoms
• Spin squeezing and many-body dipolar dynamics in optical lattice clocks
• Realization of a stroboscopic optical lattice for cold atoms with subwavelength spacing
• Coupled Atomic Wires in a Synthetic Magnetic Field
• Non-adiabatic losses from radio-frequency dressed cold atom traps: beyond the Landau-Zener model
• P-wave superfluidity of atomic lattice fermions
• Quantum Many-Body Physics with Ultracold Polar Molecules: Nanostructured Potential Barriers and Interactions
• Stroboscopic painting of optical potentials for atoms with subwavelength resolution
• Super-resolved imaging of a single cold atom on a nanosecond timescale
• Probing the edge between integrability and quantum chaos in interacting few-atom systems
• Nonlinear Thouless Pumping of Solitons Across an Impurity
• Optical control over bulk excitations in fractional quantum Hall systems
• Quantum phases of dipolar rotors on two-dimensional lattices
• Soliton interferometry with very narrow barriers obtained from spatially dependent dressed states
• Quantum Scanning Microscope for Cold Atoms
• Dark-State Optical Potential Barriers with Nanoscale Spacing
• Coherent optical nano-tweezers for ultra-cold atoms
• Topological states in the Kronig-Penney model with arbitrary scattering potentials
• A dark state of Chern bands: Designing flat bands with higher Chern number
• Optical lattice for tripod-like atomic level structure
• Spin and density self-ordering in dynamic polarization gradients fields
• Doubly-dressed states for near-field trapping and subwavelength lattice structuration
• Topological edge states in a Rydberg composite
• Floquet engineering of optical lattices with spatial features and periodicity below the diffraction limit
• Bound states of spin-orbit coupled cold atoms in a Dirac delta-function potential
• Topological charge pumping with subwavelength Raman lattices
• Eight-dimensional topological systems simulated using time-space crystalline structures
• Unidirectional spin transport of a spin-orbit-coupled atomic matter wave using a moving Dirac $\delta$-potential well
• Solid-state magnetic traps and lattices
• Interference induced anisotropy in a two-dimensional dark state optical lattice
• Emergence of the Unconventional Type-II Nambu-Goldstone Modes with Topological Origin in Bose Superfluids
• Dark state transport between unitary Fermi superfluids
• Light-induced localized vortices in multicomponent Bose-Einstein condensates
• Random Kronig-Penney-type potentials for ultracold atoms using dark states
• Periodic Ultranarrow Rods as 1D Subwavelength Optical Lattices
• The Lieb excitations and topological flat mode of spectral function of Tonks-Girardeau gas in Kronig-Penney potential
• Optical lattice with spin-dependent sub-wavelength barriers
• Superfluidity of identical fermions in an optical lattice: atoms and polar molecules
• $p$-band stability of ultracold atom gas in anharmonic optical lattice potential with large energy scales
• Two dimensional sub-wavelength topological dark state lattices
• Emergent topological properties in spatially modulated sub-wavelength barrier lattices
• Optical creation of dark-bright soliton lattices in one-dimensional multicomponent Bose-Einstein condensates