Optical atomic coherence at the one-second time scale

Abstract

Highest resolution laser spectroscopy has generally been limited to single trapped ion systems due to rapid decoherence which plagues neutral atom ensembles. Here, precision spectroscopy of ultracold neutral atoms confined in a trapping potential shows superior optical coherence without any deleterious effects from motional degrees of freedom, revealing optical resonance linewidths at the hertz level with an excellent signal to noise ratio. The resonance quality factor of 2.4 x 10^{14} is the highest ever recovered in any form of coherent spectroscopy. The spectral resolution permits direct observation of the breaking of nuclear spin degeneracy for the 1S0 and 3P0 optical clock states of 87Sr under a small magnetic bias field. This optical NMR-like approach allows an accurate measurement of the differential Lande g-factor between the two states. The optical atomic coherence demonstrated for collective excitation of a large number of atoms will have a strong impact on quantum measurement and precision frequency metrology.

in press (2006)

References in corpus (21)

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• Trapping of single atoms in cavity QED
• Direct excitation of the forbidden clock transition in neutral 174Yb atoms confined to an optical lattice
• Sub-dekahertz ultraviolet spectroscopy of 199Hg+
• Cold atom Clocks and Applications
• Systematic study of the ${}^{87}$Sr clock transition in an optical lattice
• Precision measurement and compensation of optical Stark shifts for an ion-trap quantum processor
• An accurate optical lattice clock with 87Sr atoms
• Optical clocks based on ultra-narrow three-photon resonances in alkaline earth atoms
• A high-accuracy optical clock via three-level coherence in neutral bosonic ${}^{88}$Sr
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• Properties of metastable alkaline-earth-metal atoms calculated using an accurate effective core potential
• Hyperfine quenching of the metastable ${}^3{P}_{0,2}$ states in divalent atoms
• Narrow Line Photoassociation in an Optical Lattice
• Precision spectroscopy and density-dependent frequency shifts in ultracold Sr
• Narrow Line Cooling and Momentum-Space Crystals
• Narrow Line Cooling: Finite Photon Recoil Dynamics
• Precision frequency measurement of visible intercombination lines of strontium
• The optical calcium frequency standards of PTB and NIST
• A clock transition for a future optical frequency standard with trapped atoms
• Mesoscopic quantum coherence in an optical lattice

Cited by in corpus (65)

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• Making optical atomic clocks more stable with $10^{-16}$ level laser stabilization
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Gravitational wave detection with optical lattice atomic clocks
• Prospects for a mHz-linewidth laser
• Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism
• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• Compact, thermal-noise-limited optical cavity for diode laser stabilization at 1 x 10-15
• New Limits on Coupling of Fundamental Constants to Gravity Using ${}^{87}$Sr Optical Lattice Clocks
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• Mott Insulators of Ultracold Fermionic Alkaline Earth Atoms: Underconstrained Magnetism and Chiral Spin Liquid
• Observation of the 1S0 - 3P0 clock transition in 27Al+
• Nuclear Spin Effects in Optical Lattice Clocks
• ${}^{87}$Sr lattice clock with inaccuracy below 10${}^{-15}$
• Rabi Spectroscopy and Excitation Inhomogeneity in a 1D Optical Lattice Clock
• The absolute frequency of the 87Sr optical clock transition
• 2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
• Lattice Induced Frequency Shifts in Sr Optical Lattice Clocks at the $10^{-17}$ Level
• Synthetic spin-orbit coupling in an optical lattice clock
• Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth
• Frequency measurements of superradiance from the strontium clock transition
• An Optical Lattice Clock with Spin-polarized 87Sr Atoms
• Quantum correlations and entanglement in far-from-equilibrium spin systems
• SU(N) magnetism in chains of ultracold alkaline-earth-metal atoms: Mott transitions and quantum correlations
• Accuracy Evaluation of an Optical Lattice Clock with Bosonic Atoms
• Accurate calculations of Sr properties for a high-accuracy optical clock
• Quantum coherence between two atoms beyond Q=10^15
• Coherence of an optically illuminated single nuclear spin qubit
• Probing many-body interactions in an optical lattice clock
• Experimental observation of magic-wavelength behavior in optical lattice-trapped ${}^{87}$Rb
• Spectroscopy of strontium Rydberg states using electromagnetically induced transparency
• Minimizing the Dick Effect in an Optical Lattice Clock
• Spin squeezing in optical lattice clocks via lattice-based QND measurements
• Frequency Light Shifts Caused by the Effects of Quantization of Atomic Motion in an Optical Lattice
• Steady-state many-body entanglement of hot reactive fermions
• Prospects for precision measurements of atomic helium using direct frequency comb spectroscopy
• Sideband cooling while preserving coherences in the nuclear spin state in group-II-like atoms
• Dynamic cancellation of ac Stark shift for pulsed EIT/Raman optical lattice clocks
• Space-based research in fundamental physics and quantum technologies
• Sub-Doppler laser cooling and magnetic trapping of erbium
• Ultracold molecules: vehicles to scalable quantum information processing
• Wigner crystals of ions as quantum hard drives
• Measurement of Dicke Narrowing in Electromagnetically Induced Transparency
• Extreme non-linear response of ultra-narrow optical transitions in cavity QED for laser stabilization
• Interaction Control of Ultracold Alkaline-Earth Atoms
• Three dimensional cooling and trapping with a narrow line
• Coherence-enhanced optical determination of the ${}^{229}$Th isomeric transition
• Three-dimensional imaging of cavity vacuum with single atoms localized by a nanohole array
• Controlling nuclear spin exchange via optical Feshbach resonances in ${}^{171}$Yb
• Realizing Exactly Solvable SU(N) Magnets with Thermal Atoms
• Emergent periodic and quasiperiodic lattices on surfaces of synthetic Hall tori and synthetic Hall cylinders
• Bosonic pair production and squeezing for optical phase measurements in long-lived dipoles coupled to a cavity
• Thin-film superconducting resonator tunable to the ground-state hyperfine splitting of ${}^{87}$Rb
• Multi-second magnetic coherence in a single domain spinor Bose-Einstein condensate
• Permutation symmetry in spinor quantum gases: selection rules, conservation laws, and correlations
• Experimental Upper Bounds for Resonance-Enhanced Entangled Two-Photon Absorption Cross Section of Indocyanine Green
• Dissipative dynamics of a particle coupled to field via internal degrees of freedom
• Completing the optical spectroscopy of the $6p_J$ manifold: the $5p_{3/2}\to 6p_{1/2}$ electric dipole forbidden transition in atomic rubidium
• A protocol of potential advantage in the low frequency range to gravitational wave detection with space based optical atomic clocks
• Measurement of the g factor of ground-state 87Sr at the parts-per-million level using co-trapped ultracold atoms
• Measurement of the Spin-forbidden Decay rate (3s3d)${}^1$D${}_2$ $\to$ (3s3p)${}^3$P${}_{2,1}$ in ${}^{24}$Mg
• Generating multipartite spin states with fermionic atoms in a driven optical lattice
• The time-domain Landau-Zener-Stuckelberg-Majorana interference in optical lattice clock