Systematic evaluation of an atomic clock at 2e-18 total uncertainty

Abstract

The pursuit of better atomic clocks has advanced many research areas, providing better quantum state control, new insights in quantum science, tighter limits on fundamental constant variation, and improved tests of relativity. The record for the best stability and accuracy is currently held by optical lattice clocks. This work takes an important step towards realizing the full potential of a many-particle clock with a state-of-the-art stable laser. Our 87Sr optical lattice clock now achieves fractional stability of 2.2e-16 at 1 s. With this improved stability, we perform a new accuracy evaluation of our clock, reducing many systematic uncertainties that limited our previous measurements, such as those in the lattice ac Stark shift, the atoms' thermal environment, and the atomic response to room-temperature BBR. Our combined measurements have reduced the total uncertainty of the JILA Sr clock to 2.1e-18 in fractional frequency units.

arXiv commentFull published version

References in corpus (34)

• An Optical Lattice Clock with Accuracy and Stability at the $10^{-18}$ Level
• Frequency Comparison of Two High-Accuracy Al+ Optical Clocks
• An atomic clock with $10^{-18}$ instability
• A quantum network of clocks
• A sub-40 mHz linewidth laser based on a silicon single-crystal optical cavity
• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• Implementation of Cavity Squeezing of a Collective Atomic Spin
• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit
• Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism
• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• Improved limit on a temporal variation of $m_p/m_e$ from comparisons of Yb${}^{+}$ and Cs atomic clocks
• Multipolar theory of black-body radiation shift of atomic energy levels and its implications for optical lattice clocks
• Experimenting an optical second with strontium lattice clocks
• Comparison of Two Independent Sr Optical Clocks with 1e-17 Stability at 10^3 s
• A quantum many-body spin system in an optical lattice clock
• ${}^{87}$Sr lattice clock with inaccuracy below 10${}^{-15}$
• Suppression of collisional shifts in a strongly interacting lattice clock
• Reduced back-action for phase sensitivity 10 times beyond the standard quantum limit
• A strontium lattice clock with $3\times 10^{-17}$ inaccuracy and its frequency
• Optical atomic coherence at the one-second time scale
• High accuracy correction of blackbody radiation shift in an optical lattice clock
• Blackbody radiation shift in the Sr optical atomic clock
• Lattice Induced Frequency Shifts in Sr Optical Lattice Clocks at the $10^{-17}$ Level
• An atomic clock with $1\times 10^{-18}$ room-temperature blackbody Stark uncertainty
• Improved frequency measurement of a one-dimensional optical lattice clock with a spin-polarized fermionic ${}^{87}$Sr isotope
• The 87-Sr optical frequency standard at PTB
• Optical spectrum analyzer with quantum limited noise floor
• Scattering of Cold Atom Coherences by Hot Atoms: Frequency Shifts from Background Gas Collisions
• Determination of the 5d6s 3D1 state lifetime and blackbody radiation clock shift in Yb
• Observation and cancellation of the dc Stark shift in strontium optical lattice clocks
• Delivering pulsed and phase stable light to atoms of an optical clock
• Thermometry via Light Shifts in Optical Lattices

Cited by in corpus (301)

• Quantum sensing
• Quantum metrology with nonclassical states of atomic ensembles
• Search for New Physics with Atoms and Molecules
• Atomic clock performance beyond the geodetic limit
• An ${}^{27}$Al${}^{+}$ quantum-logic clock with systematic uncertainty below $10^{-18}$
• Single-Ion Atomic Clock with $3\times 10^{-18}$ Systematic Uncertainty
• 1.5 $\mu$m lasers with sub 10 mHz linewidth
• Geodesy and metrology with a transportable optical clock
• Optical clock intercomparison with $6\times 10^{-19}$ precision in one hour
• A clock network for geodesy and fundamental science
• Resolving the gravitational redshift within a millimeter atomic sample
• Gravitational wave detection with optical lattice atomic clocks
• Ultra-stable optical clock with two cold-atom ensembles
• A Fermi-degenerate three-dimensional optical lattice clock
• JILA SrI Optical Lattice Clock with Uncertainty of $2.0\times 10^{-18}$
• Spin-orbit coupled fermions in an optical lattice clock
• Optical clock comparison test of Lorentz symmetry
• Atomic Clocks for Geodesy
• Direct detection of the 229Th nuclear clock transition
• A transportable optical lattice clock with $7\times 10^{-17}$ uncertainty
• Test of special relativity using a fiber network of optical clocks
• Frequency ratio of Yb and Sr clocks with $5\times 10^{-17}$ uncertainty at 150 s averaging time
• Storing light with subradiant correlations in arrays of atoms
• Cavity Mediated Collective Spin Exchange Interactions in a Strontium Superradiant Laser
• Matter-wave Atomic Gradiometer Interferometric Sensor (MAGIS-100)
• A clock with $8\times 10^{-19}$ systematic uncertainty
• Collective atomic scattering and motional effects in a dense coherent medium
• Imaging optical frequencies with 100 $\mu$Hz precision and 1.1 $\mu$m resolution
• Observation of single-photon superradiance and the cooperative Lamb shift in an extended sample of cold atoms
• Search for light scalar dark matter with atomic gravitational wave detectors
• Time-Reversal-Based Quantum Metrology with Many-Body Entangled States
• Compact Optical Atomic Clock Based on a Two-Photon Transition in Rubidium
• Fifteen Years of Cold Matter on the Atom Chip: Promise, Realizations, and Prospects
• High precision differential clock comparisons with a multiplexed optical lattice clock
• A high-performance optical lattice clock based on bosonic atoms
• Realization of a time-scale with an accurate optical lattice clock
• Visible light photonic integrated Brillouin laser
• Autonomous quantum clocks: does thermodynamics limit our ability to measure time?
• Realization of a $\Lambda$ system with metastable states of a capacitively-shunted fluxonium
• Synthetic spin-orbit coupling in an optical lattice clock
• Operational Magic Intensity for Sr Optical Lattice Clocks
• Critical open-system dynamics in a one-dimensional optical lattice clock
• Brillouin amplification supports $1\times 10^{-20}$ accuracy in optical frequency transfer over 1400~km of underground fibre
• An atomic array optical clock with single-atom readout
• Frequency measurements of superradiance from the strontium clock transition
• Inner-shell clock transition in atomic thulium with small BBR shift
• Photonic integrated beam delivery in a rubidium 3D magneto-optical trap
• A Compact Cold-Atom Interferometer with a High Data-Rate Grating Magneto-Optical Trap and a Photonic-Integrated-Circuit-Compatible Laser System
• Hyperpolarizability and operational magic wavelength in an optical lattice clock
• Cascaded optical fiber link using the Internet network for remote clocks comparison
• 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
• A transportable 40Ca+ single-ion clock with $7.7\times 10^{-17}$ systematic uncertainty
• Two clock transitions in neutral Yb for the highest sensitivity to variations of the fine-structure constant
• Noise and instability of an optical lattice clock
• High-density quantum sensing with dissipative first order transitions
• Demonstration of a time scale based on a stable optical carrier
• State-dependent optical lattices for the strontium optical qubit
• Point-to-Point Stabilised Optical Frequency Transfer with Active Optics
• Additional clock transitions in neutral ytterbium bring new possibilities for testing physics beyond the Standard Model
• Comparing a mercury optical lattice clock with microwave and optical frequency standards
• Blackbody radiation shift assessment for a lutetium ion clock
• Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks
• A small weak scale from a small cosmological constant
• Determination of a high spatial resolution geopotential model using atomic clock comparisons
• Lasing on a narrow transition in a cold thermal strontium ensemble
• Prospects for atomic clocks based on large ion crystals
• Improving cold-atom sensors with quantum entanglement: Prospects and challenges
• Towards a Mg lattice clock: Observation of the ${}^1{S}_0-$${}^3{P}_0$ transition and determination of the magic wavelength
• Attractive force on atoms due to blackbody radiation
• Evaluation of lattice light shift at low 10${}^{-19}$ uncertainty for a shallow lattice Sr optical clock
• Lattice-induced photon scattering in an optical lattice clock
• Towards a Transportable Aluminium Ion Quantum Logic Optical Clock
• Atomic clocks as a tool to monitor vertical surface motion
• Interference of Clocks: A Quantum Twin Paradox
• Progress and perspectives on composite laser-pulses spectroscopy for high-accuracy optical clocks
• Atomic source selection in space-borne gravitational wave detection
• Prospects and challenges for squeezing-enhanced optical atomic clocks
• Analysis of thermal radiation in ion traps for optical frequency standards
• Measuring the thermodynamic cost of timekeeping
• Engineering Quantum States of Matter for Atomic Clocks in Shallow Optical Lattices
• The ${}^{229}$Th isomer: prospects for a nuclear optical clock
• Hamiltonian engineering of spin-orbit coupled fermions in a Wannier-Stark optical lattice clock
• Gravitational Redshift Tests with Atomic Clocks and Atom Interferometers
• Isotope-shift spectroscopy of the ${}^1{S}_0\to {}^3{P}_1$ and ${}^1{S}_0\to {}^3{P}_0$ transitions in strontium
• A noise-immune cavity-assisted non-destructive detection for an optical lattice clock in the quantum regime
• A highly stable monolithic enhancement cavity for SHG generation in the UV
• SI-traceable measurement of an optical frequency at low $10^{-16}$ level without a local primary standard
• Intermittent optical frequency measurements to reduce the dead time uncertainty of frequency link
• A strontium optical lattice clock with $1\times 10^{-17}$ uncertainty and measurement of its absolute frequency
• The unit of time: present and future directions
• Dicke superradiance in ordered arrays of multilevel atoms
• Inner-shell magnetic dipole transition in Tm atom as a candidate for optical lattice clocks
• Detection of metastable electronic states by Penning trap mass spectrometry
• Optical frequency divider with division uncertainty at the 10^(-21) level
• Radioluminescence and photoluminescence of Th:CaF${}_2$ crystals
• Interaction of light with planar lattices of atoms: Reflection, transmission and cooperative magnetometry
• Quantum Lock-in Force Sensing using Optical Clock Doppler Velocimetry
• Modified hyper-Ramsey methods for the elimination of probe shifts in optical clocks
• Probing beyond the laser coherence time in optical clock comparisons
• Quantum network of neutral atom clocks
• Probing "long-range" neutrino-mediated forces with atomic and nuclear spectroscopy
• Single-ion, transportable optical atomic clocks
• Concepts for direct frequency-comb spectroscopy of ${}^{229\text{m}}$Th and an internal-conversion-based solid-state nuclear clock
• Direct comparisons of European primary and secondary frequency standards via satellite techniques
• Least-squares analysis of clock frequency comparison data to deduce optimized frequency and frequency ratio values
• Cavity-QED determination of the natural linewidth of the ${}^{87}$Sr millihertz clock transition with 30$\mu$Hz resolution
• Ramsey Spectroscopy with Displaced Frequency Jumps
• Improved Absolute Frequency Measurement of the 171Yb Optical Lattice Clock at KRISS Relative to the SI Second
• Suppressing inhomogeneous broadening in a lutetium multi-ion optical clock
• A terahertz vibrational molecular clock with systematic uncertainty at the $10^{-14}$ level
• Demonstration of the nearly continuous operation of an ${}^{171}$Yb optical lattice clock for half a year
• Realization of phase locking in good-bad-cavity active optical clock
• Implementing and characterizing precise multi-qubit measurements
• Studying fundamental limit of optical fiber links to $10^{-21}$ level
• Cavity-enhanced optical lattices for scaling neutral atom quantum technologies to higher qubit numbers
• Non-linear Spectroscopy of Sr Atoms in an Optical Cavity for Laser Stabilization
• Generalized Hyper-Ramsey Resonance with separated oscillating fields
• Exploring the Foundations of the Universe with Space Tests of the Equivalence Principle
• Entanglement and spin-squeezing in a network of distant optical lattice clocks
• Radium Ion Optical Clock
• Modeling light shifts in optical lattice clocks
• Fast and dense magneto-optical traps for Strontium
• Absolute frequency measurement with uncertainty below $1\times 10^{-15}$ using International Atomic Time
• Absolute frequency measurement of the ${}^2$S${}_{1/2}{\to }^2$F${}_{7/2}$ optical clock transition in ${}^{171}$Yb${}^{+}$ with an uncertainty of $4\times 10^{-16}$ using a frequency link to International Atomic Time
• Combining fiber Brillouin amplification with a repeater laser station for fiber-based optical frequency dissemination over 1400 km
• Atomic Properties of Lu${}^{+}$
• Multipolar polarizabilities and hyperpolarizabilities in the Sr optical lattice clock
• Injection locking of a low cost high power laser diode at 461 nm
• A quantum resonance catastrophe for transport through an AC driven impurity
• Long-distance chronometric leveling with a portable optical clock
• Absolute frequency of ${}^{87}\mathrm{Sr}$ at $1.8\times 10^{-16}$ uncertainty by reference to remote Primary Frequency Standards
• Actinide ions for testing the spatial $\alpha -$variation hypothesis
• General relativistic effects in quantum interference of "clocks"
• Continuous real-time tracking of a quantum phase below the standard quantum limit
• Precise determination of the isotope shift of ${}^{88}$Sr - ${}^{87}$Sr optical lattice clock by sharing perturbations
• Optical Atomic Clock Comparison through Turbulent Air
• A compact iodine-laser operating at 531 nm with stability at the 10${}^{-12}$ level and using a coin-sized laser module
• Robust optical clock transitions in trapped ions
• Improved frequency measurement of the ${}^1{S}_0$-${}^3{P}_0$ clock transition in ${}^{87}$Sr using the Cs fountain clock at NMIJ as a transfer oscillator
• A low maintenance Sr optical lattice clock
• Probing new physics using Rydberg states of atomic hydrogen
• Phase-stable free-space optical lattices for trapped ions
• Towards a 229Th-based nuclear clock
• Rydberg Electrometry for Optical Lattice Clocks
• Gravity in the Quantum Lab
• Single electron relativistic clock interferometer
• A development of the CI + all-order method and application to the parity-nonconserving amplitude and other properties of Pb
• Uncertainty evaluation of an ${}^{171}$Yb optical lattice clock at NMIJ
• Second harmonic generation at 399 nm resonant on the ${}^1{S}_0{-}^1{P}_1$ transition of ytterbium using a periodically poled LiNbO${}_3$ waveguide
• The quantum Allan variance
• Hyperfine averaging by dynamic decoupling in a multi-ion lutetium clock
• Realizing Exactly Solvable SU(N) Magnets with Thermal Atoms
• A mid-infrared magneto-optical trap of metastable strontium for an optical lattice clock
• Universality-of-clock-rates test using atom interferometry with $T^3$ scaling
• Simultaneous two initial clock states preparation for thulium optical clock
• Synthetic Frequency Protocol in the Ramsey Spectroscopy of Clock Transitions
• Adiabatic Control of Atomic Dressed States for Transport and Sensing
• The pulsating white dwarf G117-B15A: still the most stable optical clock known
• Time keeping and searching for new physics using metastable states of Cu, Ag and Au
• Electric dipole matrix elements for the $6p{}^2{P}_J\to 7s{}^2{S}_{1/2}$ transition in atomic cesium
• Spatially Homogeneous Entanglement for Matter-Wave Interferometry Created with Time-Averaged Measurements
• Light propagation and atom interferometry in gravity and dilaton fields
• Optical-lattice based Cs active clock with continual superradiant lasing signal
• Absolute frequency measurement of the 87Sr optical lattice clock at NTSC using International Atomic Time
• The ${}^1{\mathrm{S}}_0$-${}^3{\mathrm{P}}_2$ magnetic quadrupole transition in neutral strontium
• Faraday-shielded, DC Stark-free optical lattice clock
• Accuracy estimation of the 16O2+ transition frequencies targeting the search for the variation in mp/me
• Photovoltaic Effect of Atomtronics Induced by Artificial Gauge Field
• Quantum Stopwatch: How To Store Time in a Quantum Memory
• Dipole-dipole frequency shifts in multilevel atoms
• State-Insensitive Trapping of Alkaline-Earth Atoms in a Nanofiber-Based Optical Dipole Trap
• Improved Frequency Ratio Measurement with 87Sr and 171Yb Optical Lattice Clocks at NMIJ
• Development of a strontium optical lattice clock for the SOC mission on the ISS
• Sun-Earth Lagrange reference for fundamental physics and navigation
• Universal ultra-robust interrogation protocol with zero probe-field-induced frequency shift for quantum clocks and high-accuracy spectroscopy
• Annexing magic and tune-out wavelengths to the clock transitions of the alkaline-earth metal ions
• Dual-Mode Operation of an Optical Lattice Clock Using Strontium and Ytterbium Atoms
• Quantum complementarity of clocks in the context of general relativity
• Quantum superpositions of "common-cause" and "direct-cause" causal structures
• Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal
• Post-Newtonian reference-ellipsoid for relativistic geodesy
• Precision theoretical determination of electric-dipole matrix elements in atomic cesium
• An extended-cavity diode laser at 497 nm for laser cooling and trapping of neutral strontium
• Calculation of higher-order corrections to the light shift of the $5s^2{}^1{S}_0$--$5s5p{}^3{P}_0^o$ clock transition in Cd
• Measuring the polarization of electromagnetic fields using Rabi-rate measurements with spatial resolution: experiment and theory
• A 3-photon process for producing a degenerate gas of metastable alkaline-earth atoms
• Measurement of the tune-out wavelength for ${}^{133}$Cs at $880$ nm
• Atom-Number Enhancement by Shielding Atoms from Losses in Strontium Magneto-Optical Traps
• Prospects for Polar Molecular Ion Optical Probe of Varying Proton-Electron Mass Ratio
• Relativistic tidal effects on clock-comparison experiments
• pCI: a parallel configuration interaction software package for high-precision atomic structure calculations
• Sympathetic cooling of ${}^{40}{\text{Ca}}^{+}$ - ${}^{27}{\text{Al}}^{+}$ ion pair crystal in a linear Paul trap
• Optically loaded Strontium lattice clock with a single multi-wavelength reference cavity
• Observation of the ${}^1$S${}_0$ to ${}^3$D${}_1$ clock transition in ${}^{175}$Lu${}^{+}$
• Dynamic multipolar polarizabilities and hyperpolarizabilities of the Sr lattice clock
• Synchronization of Active Atomic Clocks via Quantum and Classical Channels
• Atomic clocks highly sensitive to the variation of the fine structure constant based on Hf II, Hf IV, and W VI ions
• Optical Telecommunications-Band Clock based on Neutral Titanium Atoms
• Clock-related properties of Lu+
• Tunable magic wavelengths for trapping with focused Laguerre-Gaussian beam
• Sisyphus Optical Lattice Decelerator
• State-dependent potentials for the ${}^1{\text{S}}_0$ and ${}^3{\text{P}}_0$ clock states of neutral ytterbium atoms
• Magic polarization for light shift cancellation in two-photon optical clocks
• A steady-state magneto-optical trap of fermionic strontium on a narrow-line transition
• Precision measurements with cold atoms and trapped ions
• Finite field calculations of static polarizabilities and hyperpolarizabilities of In${}^{+}$ and Sr
• Cryogenic Optical Lattice Clock with $1.7\times 10^{-20}$ Blackbody Radiation Stark Uncertainty
• Quantum time delay in the gravitational field of a rotating mass
• GHZ protocols enhance frequency metrology despite spontaneous decay
• Simulation of force-insensitive optical cavities in cubic spacers
• Demonstration of chronometric leveling using transportable optical clocks beyond laser coherence limit
• Fine-structure transitions as a tool for studying variation of alpha at high redshifts
• Jet-Loaded Cold Atomic Beam Source for Strontium
• Magic wavelength for the hydrogen 1S-2S transition: Contribution of the continuum and the reduced-mass correction
• The concept of laser-based conversion electron Mössbauer spectroscopy for a precise energy determination of ${}^{229m}$Th
• Continuous cavity-QED with an atomic beam
• Laser spectroscopy of cold molecules
• [CI], [CII] and CO emission lines as a probe for alpha variations at low and high redshifts
• Influence of cosmological expansion in local experiments
• Impacts of random filling on spin squeezing via Rydberg dressing in optical clocks
• Laser noise imposed limitations of ensemble quantum metrology
• Enhanced Magnetic Trap Loading for Atomic Strontium
• Effective three particle forces in polyvalent atoms
• Dissipative pure-optical trap for laser cooling and trapping of neutral atoms
• Classical and Quantum Frequency Combs for Satellite-based Clock Synchronization
• Fast and High-Yield Loading of a D${}_2$ MOT of Potassium from a Cryogenic Buffer Gas Beam
• Magic wavelengths of the Sr ($5s^2{}^1{S}_0$--$5s5p{}^3{P}_1$) intercombination transition near the $5s5p{}^3{P}_1$--$5p^2{}^3{P}_2$ transition
• Relativistic corrections to the thermal interaction of bound particles
• Vector polarizability of atomic state induced by a linearly polarized vortex beam: External control of magic, tune-out wavelengths, and heteronuclear spin oscillations
• High-fidelity imaging of a band insulator in a three-dimensional optical lattice clock
• Energy shift due to anisotropic black body radiation
• Spectrum estimation of density operators with alkaline-earth atoms
• Evaluation of the blackbody radiation shift of an Yb optical lattice clock at KRISS
• Be optical lattice clocks with the fractional Stark shift up to the level of 10${}^{-19}$
• Can the apparent expansion of the Universe be attributed to an increasing vacuum refractive index ?
• Magic intensity trapping of the Mg lattice clock with light shift suppressed below $10^{-19}$
• Space-based optical lattice clocks as gravitational wave detectors in search for new physics
• High-precision measurements and theoretical calculations of indium excited-state polarizabilities
• Testing screened scalar-tensor theories of gravity with atomic clocks
• Role of hyperfine interaction in Landé $g$-factors of ${}^3{P}_0^o$ clock states
• A simple atomic beam oven with a metal thermal break
• Thermal corrections to the bound-electron $g$-factor
• Phase diffusion in trapped-atom interferometers
• Evaluation of the relativistic redshift in frequency standards at KRISS
• Magnetic-field gradiometer based on ultracold collisions
• Wavefront Curvature in Optical Atomic Beam Clocks
• Effective multi-body SU($N$)-symmetric interactions of ultracold fermionic atoms on a 3-D lattice
• High-precision measurement and ab initio calculation of the $(6s^{2}6p^2){}^3{P}_0\to {}^3{P}_2$ electric quadrupole transition amplitude in ${}^{208}$Pb
• Enhanced phase noise reduction in localized two-way optical frequency comparison
• A compact atomic beam based system for Doppler-free laser spectroscopy of Strontium atoms
• A unified theory of tunneling times promoted by Ramsey clocks
• Disentangling Pauli blocking of atomic decay from cooperative radiation and atomic motion in a 2D Fermi gas
• Using optical clock transitions in Cu II and Yb III for time-keeping and search for new physics
• Magic density in a self-rephasing ensemble of trapped ultracold atoms
• Probe field ellipticity-induced shift in an atomic clock
• Accurate Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock
• Absolute frequency measurement of the 5s5p ${}^1{P}_1$ - 5s5d ${}^1{D}_2$ transition in strontium
• Theoretical Calculation of the Quadratic Zeeman Shift Coefficient of the 3P0 clock state for Strontium Optical Lattice Clock
• Ultra-low birefringence dodecagonal vacuum glass cell
• Coupling atoms to cavities with narrow linewidth optical transitions: Applications to frequency metrology
• Clock frequency estimation under spontaneous emission
• Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map
• Limitation of single-repumping schemes for laser cooling of Sr atoms
• Temperature-dependent mechanical losses of Eu${}^{3+}$:Y${}_2$SiO${}_5$ for spectral hole burning laser stabilization
• Analyzing the optical pumping on the $5s4d{}^1{D}_2-5s8p{}^1{P}_1$ transition in a magneto-optical trap of Sr atoms
• Quantum Sensing Using Atomic Clocks for Nuclear and Particle Physics
• Lifetime measurement of the 5s5p 1P1 state in strontium
• Indirect Methods to Control Population Distribution in a Large Spin System
• A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms
• Blackbody Radiation Noise Broadening of Quantum Systems
• Collinear Three-Photon Excitation of a Strongly Forbidden Optical Clock Transition
• Natural line profile asymmetry
• Nonlinear Zeeman effect in photoassociation spectra of ${}^{40}$Ca near the ${}^3$P${}_1$+${}^1$S${}_0$ asymptote
• Photoionization cross sections of ultracold ${}^{88}$Sr in ${}^1$P${}_1$ and ${}^3$S${}_1$ states at 390 nm and the resulting blue-detuned magic wavelength optical lattice clock constraints
• A symmetry-protected topological optical lattice clock
• Diffraction of a CW atom laser in the Raman-Nath regime
• Superradiant active optical atomic clocks: motivations and current challenges
• Phase Transitions in Light-Matter Systems for Quantum Sensing
• The influence of lunar tidal potential on clock frequencies at different positions on Earth
• Degenerate Rabi spectroscopy of the Floquet engineered optical lattice clock
• Thermal one-loop self-energy correction for hydrogen-like systems: Relativistic approach
• Tellurium Spectrometer for ${}^1{\text{S}}_0-{}^1{\text{P}}_1$ Transitions in Strontium and Other Alkaline-Earth Atoms
• Bayesian Frequency Metrology with Optimal Ramsey Interferometry in Optical Atomic Clocks
• Direct loading of a Sr magneto-optical trap from a thermal atomic beam
• Single Sr Atoms in Optical Tweezer Arrays for Quantum Simulation
• 100-ns-level timing holdover after 12 years for rubidium atomic fountains
• Apparatus for Optical-Atomic System Integration & Calibration: 1 atm to 1$\times$10${}^{-11}$ Torr in 24h
• A Brillouin Laser Optical Atomic Clock
• Relativistic hyperpolarizabilities for atomic H, Li, and Be${}^{+}$ systems
• Absolute frequency measurements on the $5s5p^3$P${}_0\to 5s6d^3$D${}_1$ transition in strontium
• Decoherence of Atomic Ensembles in Optical Lattice Clocks by Gravity
• Circulating pulse cavity enhancement as a method for extreme momentum transfer atom interferometry
• Thermal corrections for positronium
• Extraordinary low systematic frequency shifts in bi-colour thulium optical clock
• Entropic costs of extracting classical ticks from a quantum clock
• Radiative corrections to the level width in the presence of magnetic field
• Enhanced timing of a 113 km O-TWTFT link with digital maximum likelihood estimation process
• Preliminary experimental results of determining the geopotential difference between two synchronized portable hydrogen clocks at different locations
• Direct Measurement of the $5s5p{}^1{P}_1\to 5s4d{}^1{D}_2$ Decay Rate in Strontium
• Quantum Physics in Space