A high-performance optical lattice clock based on bosonic atoms

Abstract

Optical lattice clocks with uncertainty and instability in the $10^{-17}$-range and below have so far been demonstrated exclusively using fermions. Here, we demonstrate a bosonic optical lattice clock with $3\times 10^{-18}$ instability and $2.0\times 10^{-17}$ accuracy, both values improving on previous work by a factor 30. This was enabled by probing the clock transition with an ultra-long interrogation time of 4 s, using the long coherence time provided by a cryogenic silicon resonator, by careful stabilization of relevant operating parameters, and by operating at low atom density. This work demonstrates that bosonic clocks, in combination with highly coherent interrogation lasers, are suitable for high-accuracy applications with particular requirements, such as high reliability, transportability, operation in space, or suitability for particular fundamental physics topics. As an example, we determine the ${}^{88}\text{Sr}{-}^{87}$Sr isotope shift with 12 mHz uncertainty.

References in corpus (49)

• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• 1.5 $\mu$m lasers with sub 10 mHz linewidth
• Hunting for topological dark matter with atomic clocks
• Geodesy and metrology with a transportable optical clock
• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• A clock network for geodesy and fundamental science
• Ultra-stable optical clock with two cold-atom ensembles
• Improved limit on a temporal variation of $m_p/m_e$ from comparisons of Yb${}^{+}$ and Cs atomic clocks
• Magnetic field-induced spectroscopy of forbidden optical transitions with application to lattice-based optical atomic clocks
• 8E-17 fractional laser frequency instability with a long room-temperature cavity
• Colloquium: Physics of optical lattice clocks
• Experimenting an optical second with strontium lattice clocks
• Real-time geopotentiometry with synchronously linked optical lattice clocks
• A transportable optical lattice clock with $7\times 10^{-17}$ uncertainty
• Test of special relativity using a fiber network of optical clocks
• Comparison of Two Independent Sr Optical Clocks with 1e-17 Stability at 10^3 s
• Nuclear Spin Effects in Optical Lattice Clocks
• Coherent optical frequency transfer at 5e-19 over a doubled 642 km fiber link
• High accuracy correction of blackbody radiation shift in an optical lattice clock
• Lattice Induced Frequency Shifts in Sr Optical Lattice Clocks at the $10^{-17}$ Level
• Hyper-Ramsey Spectroscopy of Optical Clock Transitions
• Realization of a time-scale with an accurate optical lattice clock
• Optical clocks based on ultra-narrow three-photon resonances in alkaline earth atoms
• Measuring the frequency of a Sr optical lattice clock using a 120-km coherent optical transfer
• Narrow Line Photoassociation in an Optical Lattice
• Direct Comparison of Distant Optical Lattice Clocks at the $10^{-16}$ Uncertainty
• Optical to microwave clock frequency ratios with a nearly continuous strontium optical lattice clock
• Development of a strontium optical lattice clock for the SOC mission on the ISS
• Noise and instability of an optical lattice clock
• Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons
• Accuracy Evaluation of an Optical Lattice Clock with Bosonic Atoms
• Frequency ratios of Sr, Yb and Hg based optical lattice clocks and their applications
• p-Wave cold collisions in an optical lattice clock
• Auto-Balanced Ramsey Spectroscopy
• Scattering of Cold Atom Coherences by Hot Atoms: Frequency Shifts from Background Gas Collisions
• Strategies for reducing the light shift in atomic clocks
• Demonstration of a Transportable 1 Hz-Linewidth Laser
• Delivering pulsed and phase stable light to atoms of an optical clock
• Direct comparison of optical lattice clocks with an intercontinental baseline of 9 000 km
• Providing 1E-16 short-term stability of a 1.5 μm laser to optical clocks
• A compact and efficient strontium oven for laser-cooling experiments
• PHARAO Laser Source Flight Model: Design and Performances
• Polarizabilities of the 87Sr Clock Transition
• Precise determination of the isotope shift of ${}^{88}$Sr - ${}^{87}$Sr optical lattice clock by sharing perturbations
• Testing local position and fundamental constant invariance due to periodic gravitation and boost using long-term comparison of the SYRTE atomic fountains and H-masers
• Zeeman Slowers for Strontium based on Permanent Magnets
• Robust frequency stabilization of multiple spectroscopy lasers with large and tunable offset frequencies
• Resolved atomic interaction sidebands in an optical clock transition
• Development of a strontium optical lattice clock for the SOC mission on the ISS

Cited by in corpus (38)

• AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space
• Micius quantum experiments in space
• Seconds-scale coherence in a tweezer-array optical clock
• The Missing Link in Gravitational-Wave Astronomy: Discoveries waiting in the decihertz range
• Roadmap towards the redefinition of the second
• Long-lived Bell states in an array of optical clock qubits
• An atomic array optical clock with single-atom readout
• SAGE: A Proposal for a Space Atomic Gravity Explorer
• Quantum Variational Optimization of Ramsey Interferometry and Atomic Clocks
• Quantum Technologies in Space
• Miniaturized optical frequency standard for next-generation portable optical clocks
• Optical frequency ratio of a ${}^{171}{\mathrm{Yb}}^{+}$ single-ion clock and a ${}^{87}\mathrm{Sr}$ lattice clock
• Precision determination of isotope shifts in ytterbium and implications for new physics
• The unit of time: present and future directions
• Metasurface Holographic Optical Traps for Ultracold Atoms
• A Sideband-Enhanced Cold Atomic Source For Optical Clocks
• Cavity-QED determination of the natural linewidth of the ${}^{87}$Sr millihertz clock transition with 30$\mu$Hz resolution
• Floquet engineering Hz-Level Rabi Spectra in Shallow Optical Lattice Clock
• A terahertz vibrational molecular clock with systematic uncertainty at the $10^{-14}$ level
• Cavity-enhanced optical lattices for scaling neutral atom quantum technologies to higher qubit numbers
• Exploring the Foundations of the Universe with Space Tests of the Equivalence Principle
• Long-distance chronometric leveling with a portable optical clock
• Optical Atomic Clock Comparison through Turbulent Air
• A Prototype of a Compact Rubidium-Based Optical Frequency Reference for Operation on Nanosatellites
• Demonstration of a Mobile Optical Clock Ensemble at Sea
• Isotope shifts for ${}^1{S}_0-{}^3{P}_{0,1}^o$ Yb lines from multi-configuration Dirac-Hartree-Fock calculations
• Testing the Einstein Equivalence Principle with two Earth-orbiting clocks
• A steady-state magneto-optical trap of fermionic strontium on a narrow-line transition
• Crossed optical cavities with large mode diameters
• Coherent Three-Photon Excitation of the Strontium Clock Transition
• Ultrastable lasers: investigations of crystalline mirrors and closed cycle cooling at 124 K
• Towards Adoption of an Optical Second: Verifying Optical Clocks at the SI Limit
• Coupling atoms to cavities with narrow linewidth optical transitions: Applications to frequency metrology
• Limitation of single-repumping schemes for laser cooling of Sr atoms
• Collinear Three-Photon Excitation of a Strongly Forbidden Optical Clock Transition
• Relativistic theory for time and frequency transfer through flowing media with an application to the atmosphere of Earth
• Direct loading of a Sr magneto-optical trap from a thermal atomic beam
• Single Sr Atoms in Optical Tweezer Arrays for Quantum Simulation