Optical atomic clocks

Systematic evaluation of an atomic clock at 2 × 10−18 total uncertainty

(2015) T.L. Nicholson et al.   Nature Communications

Contributing to TAI with a secondary representation of the SI second

(2014) J Guéna et al.   METROLOGIA

An optical lattice clock with accuracy and stability at the 10−18 level

(2014) B. J. Bloom et al.   NATURE

Extreme ultraviolet radiation with coherence time greater than 1 s

(2014) Craig Benko et al.   Nature Photonics

Spectral purity transfer between optical wavelengths at the 10−18 level

(2014) Daniele Nicolodi et al.   Nature Photonics

A quantum network of clocks

(2014) P. Kómár et al.   Nature Physics

Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions

(2014) F. Scazza et al.   Nature Physics

A strontium lattice clock with 3 × 10−17inaccuracy and its frequency

(2014) Stephan Falke et al.   NEW JOURNAL OF PHYSICS

Reduction of residual amplitude modulation to 1 × 10^-6 for frequency modulation and laser stabilization

(2014) W. Zhang et al.   OPTICS LETTERS

Quantum engineering of atomic phase shifts in optical clocks

(2014) T. Zanon-Willette et al.   PHYSICAL REVIEW A

Agreement between two88Sr+optical clocks to 4 parts in 1017

(2014) G. P. Barwood et al.   PHYSICAL REVIEW A

Cs-based optical frequency measurement using cross-linked optical and microwave oscillators

(2014) Chr. Tamm et al.   PHYSICAL REVIEW A

Frequency Ratio of Two Optical Clock Transitions inYb+171and Constraints on the Time Variation of Fundamental Constants

(2014) R. M. Godun et al.   PHYSICAL REVIEW LETTERS

Atomic Clock with1×10−18Room-Temperature Blackbody Stark Uncertainty

(2014) K. Beloy et al.   PHYSICAL REVIEW LETTERS

Direct Observation of Coherent Interorbital Spin-Exchange Dynamics

(2014) G. Cappellini et al.   PHYSICAL REVIEW LETTERS

Heisenberg-Limited Atom Clocks Based on Entangled Qubits

(2014) E. M. Kessler et al.   PHYSICAL REVIEW LETTERS

Improved Limit on a Temporal Variation ofmp/mefrom Comparisons ofYb+and Cs Atomic Clocks

(2014) N. Huntemann et al.   PHYSICAL REVIEW LETTERS

High-Accuracy Measurement of the Differential Scalar Polarizability of aSr+88Clock Using the Time-Dilation Effect

(2014) Pierre Dubé et al.   PHYSICAL REVIEW LETTERS

Optical-lattice clock sets new standard for timekeeping

(2014) Ashley G. Smart   PHYSICS TODAY

Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism

(2014) X. Zhang et al.   SCIENCE

Probing many-body interactions in an optical lattice clock

(2013) A.M. Rey et al.   ANNALS OF PHYSICS

Reducing the effect of thermal noise in optical cavities

(2013) Sana Amairi et al.   APPLIED PHYSICS B-LASERS AND OPTICS

A high-precision segmented Paul trap with minimized micromotion for an optical multiple-ion clock

(2013) Karsten Pyka et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Spectroscopy and frequency measurement of the87Sr clock transition by laser linewidth transfer using an optical frequency comb

(2013) Daisuke Akamatsu et al.   Applied Physics Express

Providing $10^{-16}$ Short-Term Stability of a 1.5-$\mu\hbox{m}$ Laser to Optical Clocks

(2013) Christian Hagemann et al.   IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

Absolute frequency measurement of1S0(F= 1/2)–3P0(F= 1/2) transition of171Yb atoms in a one-dimensional optical lattice at KRISS

(2013) Chang Yong Park et al.   METROLOGIA

Optical two-way time and frequency transfer over free space

(2013) Fabrizio R. Giorgetta et al.   Nature Photonics

Tenfold reduction of Brownian noise in high-reflectivity optical coatings

(2013) Garrett D. Cole et al.   Nature Photonics

Shifts of optical frequency references based on spectral-hole burning in Eu3+:Y2SiO5

(2013) Michael J Thorpe et al.   NEW JOURNAL OF PHYSICS

Photonic microwave generation with high-power photodiodes

(2013) Tara M. Fortier et al.   OPTICS LETTERS

Blackbody-radiation shift in the Sr optical atomic clock

(2013) M. S. Safronova et al.   PHYSICAL REVIEW A

Evaluation of systematic shifts of the88Sr+single-ion optical frequency standard at the10−17level

(2013) Pierre Dubé et al.   PHYSICAL REVIEW A

Zero-Dead-Time Operation of Interleaved Atomic Clocks

(2013) G. W. Biedermann et al.   PHYSICAL REVIEW LETTERS

Scattering of Cold-Atom Coherences by Hot Atoms: Frequency Shifts from Background-Gas Collisions

(2013) Kurt Gibble   PHYSICAL REVIEW LETTERS

Efficient Atomic Clocks Operated with Several Atomic Ensembles

(2013) J. Borregaard et al.   PHYSICAL REVIEW LETTERS

s-Wave Collisional Frequency Shift of a Fermion Clock

(2013) Eric L. Hazlett et al.   PHYSICAL REVIEW LETTERS

New Limits on Variation of the Fine-Structure Constant Using Atomic Dysprosium

(2013) N. Leefer et al.   PHYSICAL REVIEW LETTERS

Feedback Control of Trapped Coherent Atomic Ensembles

(2013) T. Vanderbruggen et al.   PHYSICAL REVIEW LETTERS

Optical Spectrum Analyzer with Quantum-Limited Noise Floor

(2013) M. Bishof et al.   PHYSICAL REVIEW LETTERS

Near-Heisenberg-Limited Atomic Clocks in the Presence of Decoherence

(2013) J. Borregaard et al.   PHYSICAL REVIEW LETTERS

Optical-Frequency Transfer over a Single-Span 1840 km Fiber Link

(2013) S. Droste et al.   PHYSICAL REVIEW LETTERS

A Quantum Many-Body Spin System in an Optical Lattice Clock

(2013) M. J. Martin et al.   SCIENCE

An Atomic Clock with 10-18 Instability

(2013) N. Hinkley et al.   SCIENCE

Quantum-limited metrology with nonlinear detection schemes

(2013) Alfredo Luis   Journal of Photonics for Energy

Delivering pulsed and phase stable light to atoms of an optical clock

(2012) S. Falke et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Simultaneous remote transfer of accurate timing and optical frequency over a public fiber network

(2012) Olivier Lopez et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Stability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in $^{87}$Sr

(2012) Atsushi Yamaguchi et al.   Applied Physics Express

Improved Absolute Frequency Measurement of the $^{171}$Yb Optical Lattice Clock towards a Candidate for the Redefinition of the Second

(2012) Masami Yasuda et al.   Applied Physics Express

Geophysical applicability of atomic clocks: direct continental geoid mapping

(2012) Ruxandra Bondarescu et al.   GEOPHYSICAL JOURNAL INTERNATIONAL

Observation and cancellation of a perturbing dc stark shift in strontium optical lattice clocks

(2012) J. Lodewyck et al.   IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL

Operating a 87Sr optical lattice clock with high precision and at high density

(2012) M. D. Swallows et al.   IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL

Spin squeezing, entanglement and quantum metrology with Bose–Einstein condensates

(2012) Christian Gross   JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Direct frequency comb spectroscopy in the extreme ultraviolet

(2012) Arman Cingöz et al.   NATURE

A steady-state superradiant laser with less than one intracavity photon

(2012) Justin G. Bohnet et al.   NATURE

Optical flywheels with attosecond jitter

(2012) Andrew J. Benedick et al.   Nature Photonics

A sub-40-mHz-linewidth laser based on a silicon single-crystal optical cavity

(2012) T. Kessler et al.   Nature Photonics

Absolute frequency measurement of the2S1/2–2F7/2electric octupole transition in a single ion of171Yb+with 10−15fractional uncertainty

(2012) S A King et al.   NEW JOURNAL OF PHYSICS

Performance of a229Thorium solid-state nuclear clock

(2012) G A Kazakov et al.   NEW JOURNAL OF PHYSICS

Quantum frequency estimation with trapped ions and atoms

(2012) U Dorner   NEW JOURNAL OF PHYSICS

Quantum state preparation and control of single molecular ions

(2012) D Leibfried   NEW JOURNAL OF PHYSICS

Locking the local oscillator phase to the atomic phase via weak measurement

(2012) N Shiga et al.   NEW JOURNAL OF PHYSICS

Quantum logic for the control and manipulation of molecular ions using a frequency comb

(2012) S Ding et al.   NEW JOURNAL OF PHYSICS

Direct comparison of a Ca^+ single-ion clock against a Sr lattice clock to verify the absolute frequency measurement

(2012) Kensuke Matsubara et al.   OPTICS EXPRESS

Laser locking to the ^199Hg ^1S_0 − ^3P_0 clock transition with 54 × 10^−15/✓τ fractional frequency instability

(2012) J. J. McFerran et al.   OPTICS LETTERS

Determination of the5d6s3D1state lifetime and blackbody-radiation clock shift in Yb

(2012) K. Beloy et al.   PHYSICAL REVIEW A

Sympathetic cooling of mixed-species two-ion crystals for precision spectroscopy

(2012) Jannes B. Wübbena et al.   PHYSICAL REVIEW A

Anomalously small blackbody radiation shift in the Tl+frequency standard

(2012) Z. Zuhrianda et al.   PHYSICAL REVIEW A

High-precision atomic clocks with highly charged ions: Nuclear-spin-zerof12-shell ions

(2012) V. A. Dzuba et al.   PHYSICAL REVIEW A

Ion clock and search for the variation of the fine-structure constant using optical transitions in Nd13+and Sm15+

(2012) V. A. Dzuba et al.   PHYSICAL REVIEW A

Hertz-level measurement of the40Ca+4s2S1/2–3d2D5/2clock transition frequency with respect to the SI second through the Global Positioning System

(2012) Y. Huang et al.   PHYSICAL REVIEW A

Ultimate limits to quantum metrology and the meaning of the Heisenberg limit

(2012) Marcin Zwierz et al.   PHYSICAL REVIEW A

Universality of the Heisenberg limit for estimates of random phase shifts

(2012) Michael J. W. Hall et al.   PHYSICAL REVIEW A

Single-Ion Nuclear Clock for Metrology at the 19th Decimal Place

(2012) C. J. Campbell et al.   PHYSICAL REVIEW LETTERS

Ytterbium in Quantum Gases and Atomic Clocks: van der Waals Interactions and Blackbody Shifts

(2012) M. S. Safronova et al.   PHYSICAL REVIEW LETTERS

Optical Transitions in Highly Charged Californium Ions with High Sensitivity to Variation of the Fine-Structure Constant

(2012) J. C. Berengut et al.   PHYSICAL REVIEW LETTERS

Highly Charged Ions as a Basis of Optical Atomic Clockwork of Exceptional Accuracy

(2012) Andrei Derevianko et al.   PHYSICAL REVIEW LETTERS

Neutral Atom Frequency Reference in the Deep Ultraviolet withFractional Uncertainty=5.7×10−15

(2012) J. J. McFerran et al.   PHYSICAL REVIEW LETTERS

Generalized Ramsey Excitation Scheme with Suppressed Light Shift

(2012) N. Huntemann et al.   PHYSICAL REVIEW LETTERS

Quantum Measurement Bounds beyond the Uncertainty Relations

(2012) Vittorio Giovannetti et al.   PHYSICAL REVIEW LETTERS

Sub-Heisenberg Estimation Strategies Are Ineffective

(2012) Vittorio Giovannetti et al.   PHYSICAL REVIEW LETTERS

High-Accuracy Measurement of Atomic Polarizability in an Optical Lattice Clock

(2012) J. A. Sherman et al.   PHYSICAL REVIEW LETTERS

Comparison of Two Independent Sr Optical Clocks with1×10−17Stability at103  s

(2012) T. L. Nicholson et al.   PHYSICAL REVIEW LETTERS

Sr+88445-THz Single-Ion Reference at the10−17Level via Control and Cancellation of Systematic Uncertainties and Its Measurement against the SI Second

(2012) Alan A. Madej et al.   PHYSICAL REVIEW LETTERS

High Accuracy Correction of Blackbody Radiation Shift in an Optical Lattice Clock

(2012) Thomas Middelmann et al.   PHYSICAL REVIEW LETTERS

Improved Tests of Local Position Invariance UsingRb87andCs133Fountains

(2012) J. Guéna et al.   PHYSICAL REVIEW LETTERS

High-Accuracy Optical Clock Based on the Octupole Transition inYb+171

(2012) N. Huntemann et al.   PHYSICAL REVIEW LETTERS

Invited Review Article: The uncertainty in the realization and dissemination of the SI second from a systems point of view

(2012) Thomas E. Parker   REVIEW OF SCIENTIFIC INSTRUMENTS

A 920-Kilometer Optical Fiber Link for Frequency Metrology at the 19th Decimal Place

(2012) K. Predehl et al.   SCIENCE

Linear Paul trap design for an optical clock with Coulomb crystals

(2011) N. Herschbach et al.   APPLIED PHYSICS B-LASERS AND OPTICS

Detection of parametric resonance of trapped ions for micromotion compensation

(2011) Y. Ibaraki et al.   APPLIED PHYSICS B-LASERS AND OPTICS

State-dependent lattices for quantum computing with alkaline-earth-metal atoms

(2011) A. J. Daley et al.   EUROPEAN PHYSICAL JOURNAL D

Tackling the Blackbody Shift in a Strontium Optical Lattice Clock

(2011) T Middelmann et al.   IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

Electric field compensation and sensing with a single ion in a planar trap

(2011) S. Narayanan et al.   JOURNAL OF APPLIED PHYSICS

Thermal noise in optical cavities revisited

(2011) Thomas Kessler et al.   JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

The87Sr optical frequency standard at PTB

(2011) St Falke et al.   METROLOGIA

Making optical atomic clocks more stable with 10−16-level laser stabilization

(2011) Y. Y. Jiang et al.   Nature Photonics

Frequency comparison of optical lattice clocks beyond the Dick limit

(2011) Masao Takamoto et al.   Nature Photonics

Frequency stabilization to 6 × 10−16 via spectral-hole burning

(2011) Michael J. Thorpe et al.   Nature Photonics

Advances in quantum metrology

(2011) Vittorio Giovannetti et al.   Nature Photonics

Generation of ultrastable microwaves via optical frequency division

(2011) T. M. Fortier et al.   Nature Photonics

General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology

(2011) B. M. Escher et al.   Nature Physics

Spherical reference cavities for frequency stabilization of lasers in non-laboratory environments

(2011) David R. Leibrandt et al.   OPTICS EXPRESS

All-optical link for direct comparison of distant optical clocks

(2011) Miho Fujieda et al.   OPTICS EXPRESS

Field-test of a robust, portable, frequency-stable laser

(2011) David R. Leibrandt et al.   OPTICS EXPRESS

Force-insensitive optical cavity

(2011) Stephen Webster et al.   OPTICS LETTERS

When should we change the definition of the second?

(2011) P. Gill   PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES

Cold-collision-shift cancellation and inelastic scattering in a Yb optical lattice clock

(2011) A. D. Ludlow et al.   PHYSICAL REVIEW A

Extreme nonlinear response of ultranarrow optical transitions in cavity QED for laser stabilization

(2011) M. J. Martin et al.   PHYSICAL REVIEW A

Spectrally Narrow, Long-Term Stable Optical Frequency Reference Based on aEu3+∶Y2SiO5Crystal at Cryogenic Temperature

(2011) Qun-Feng Chen et al.   PHYSICAL REVIEW LETTERS

Electron-Hole Transitions in Multiply Charged Ions for Precision Laser Spectroscopy and Searching for Variations inα

(2011) J. C. Berengut et al.   PHYSICAL REVIEW LETTERS

Atomic Clocks with Suppressed Blackbody Radiation Shift

(2011) V. I. Yudin et al.   PHYSICAL REVIEW LETTERS

p-Wave Cold Collisions in an Optical Lattice Clock

(2011) N. D. Lemke et al.   PHYSICAL REVIEW LETTERS

Precision Calculation of Blackbody Radiation Shifts for Optical Frequency Metrology

(2011) M. S. Safronova et al.   PHYSICAL REVIEW LETTERS

Resolved Atomic Interaction Sidebands in an Optical Clock Transition

(2011) M. Bishof et al.   PHYSICAL REVIEW LETTERS

Optical Lattice Trapping ofHg199and Determination of the Magic Wavelength for the UltravioletS01↔P03Clock Transition

(2011) L. Yi et al.   PHYSICAL REVIEW LETTERS

Erratum: General Optimality of the Heisenberg Limit for Quantum Metrology [Phys. Rev. Lett.105, 180402 (2010)]

(2011) Marcin Zwierz et al.   PHYSICAL REVIEW LETTERS

Quantum Coherence between Two Atoms beyondQ=1015

(2011) C. W. Chou et al.   PHYSICAL REVIEW LETTERS

Measurement of Optical Feshbach Resonances in an Ideal Gas

(2011) S. Blatt et al.   PHYSICAL REVIEW LETTERS

Lattice-Induced Frequency Shifts in Sr Optical Lattice Clocks at the10−17Level

(2011) P. G. Westergaard et al.   PHYSICAL REVIEW LETTERS

14-Qubit Entanglement: Creation and Coherence

(2011) Thomas Monz et al.   PHYSICAL REVIEW LETTERS

Colloquium: Physics of optical lattice clocks

(2011) Andrei Derevianko et al.   REVIEWS OF MODERN PHYSICS

Suppression of Collisional Shifts in a Strongly Interacting Lattice Clock

(2011) M. D. Swallows et al.   SCIENCE

Sub-100 attoseconds stability optics-to-microwave synchronization

(2010) W. Zhang et al.   APPLIED PHYSICS LETTERS

Minimizing the dick effect in an optical lattice clock

(2010) P. Westergaard et al.   IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL

Compensation of field-induced frequency shifts in Ramsey spectroscopy of optical clock transitions

(2010) A. V. Taichenachev et al.   JETP LETTERS

Dynamic polarizabilities and related properties of clock states of the ytterbium atom

(2010) V A Dzuba et al.   JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Tuning the thermal expansion properties of optical reference cavities with fused silica mirrors

(2010) Thomas Legero et al.   JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

Atom-chip-based generation of entanglement for quantum metrology

(2010) Max F. Riedel et al.   NATURE

Nonlinear atom interferometer surpasses classical precision limit

(2010) C. Gross et al.   NATURE

Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms

(2010) A. V. Gorshkov et al.   Nature Physics

Frequency stability of optical lattice clocks

(2010) Jérôme Lodewyck et al.   NEW JOURNAL OF PHYSICS

Trapped-ion probing of light-induced charging effects on dielectrics

(2010) M Harlander et al.   NEW JOURNAL OF PHYSICS

Entanglement-assisted atomic clock beyond the projection noise limit

(2010) Anne Louchet-Chauvet et al.   NEW JOURNAL OF PHYSICS

Long-distance remote comparison of ultrastable optical frequencies with 10^-15 instability in fractions of a second

(2010) A. Pape et al.   OPTICS EXPRESS

A multi-branch, fiber-based frequency comb with millihertz-level relative linewidths using an intra-cavity electro-optic modulator

(2010) Yoshiaki Nakajima et al.   OPTICS EXPRESS

Cascaded multiplexed optical link on a telecommunication network for frequency dissemination

(2010) Olivier Lopez et al.   OPTICS EXPRESS

High-stability microwave frequency transfer by propagation of an optical frequency comb over 50 km of optical fiber

(2010) Giuseppe Marra et al.   OPTICS LETTERS

Coherent optical link through the turbulent atmosphere

(2010) Khelifa Djerroud et al.   OPTICS LETTERS

Three-dimensional optical lattice clock with bosonicSr88atoms

(2010) Tomoya Akatsuka et al.   PHYSICAL REVIEW A

Entangling the lattice clock: Towards Heisenberg-limited timekeeping

(2010) Jonathan D. Weinstein et al.   PHYSICAL REVIEW A

Hyper-Ramsey spectroscopy of optical clock transitions

(2010) V. I. Yudin et al.   PHYSICAL REVIEW A

Squeezing the collective spin of a dilute atomic ensemble by cavity feedback

(2010) Monika H. Schleier-Smith et al.   PHYSICAL REVIEW A

Extreme Ultraviolet Frequency Comb Metrology

(2010) Dominik Z. Kandula et al.   PHYSICAL REVIEW LETTERS

Constraining the Evolution of the Fundamental Constants with a Solid-State Optical Frequency Reference Based on theTh229Nucleus

(2010) Wade G. Rellergert et al.   PHYSICAL REVIEW LETTERS

Clock Shifts of Optical Transitions in Ultracold Atomic Gases

(2010) Zhenhua Yu et al.   PHYSICAL REVIEW LETTERS

Submicron Spatial Modulation of an Interatomic Interaction in a Bose-Einstein Condensate

(2010) Rekishu Yamazaki et al.   PHYSICAL REVIEW LETTERS

Enhanced Laboratory Sensitivity to Variation of the Fine-Structure Constant using Highly Charged Ions

(2010) J. C. Berengut et al.   PHYSICAL REVIEW LETTERS

Orientation-Dependent Entanglement Lifetime in a Squeezed Atomic Clock

(2010) Ian D. Leroux et al.   PHYSICAL REVIEW LETTERS

Frequency Comparison of Two High-AccuracyAl+Optical Clocks

(2010) C. Chou et al.   PHYSICAL REVIEW LETTERS

Optical Clocks and Relativity

(2010) C. W. Chou et al.   SCIENCE

A narrow linewidth and frequency-stable probe laser source for  the 88Sr+ single ion optical frequency standard

(2009) P. Dubé et al.   APPLIED PHYSICS B-LASERS AND OPTICS

One-Dimensional Optical Lattice Clock with a Fermionic171Yb Isotope

(2009) Takuya Kohno et al.   Applied Physics Express

Orbit determination for next generation space clocks

(2009) L. Duchayne et al.   ASTRONOMY & ASTROPHYSICS

Search for variation of the fundamental constants in atomic, molecular, and nuclear spectra

(2009) V V Flambaum et al.   CANADIAN JOURNAL OF PHYSICS

Blackbody radiation shift of the Al+ clock transition

(2009) J. Mitroy et al.   EUROPEAN PHYSICAL JOURNAL D

Space clocks and fundamental tests: The ACES experiment

(2009) L. Cacciapuoti et al.   European Physical Journal-Special Topics

Observation of the gamma resonance of a long-lived 109m Ag isomer using a gravitational gamma-ray spectrometer

(2009) Yu. D. Bayukov et al.   JETP LETTERS

Frequency metrology and clocks

(2009) H S Margolis   JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Blackbody-radiation shift in a88Sr+ion optical frequency standard

(2009) Dansha Jiang et al.   JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Metastable Magnesium fluorescence spectroscopy using a frequency-stabilized 517 nm laser

(2009) Ming He et al.   OPTICS EXPRESS

A vibration-insensitive optical cavity and absolute determination of its ultrahigh stability

(2009) Y. N. Zhao et al.   OPTICS EXPRESS

Ultralow-frequency-noise stabilization of a laser by locking to an optical fiber-delay line

(2009) Fabien Kéfélian et al.   OPTICS LETTERS

Atmospheric transfer of optical and radio frequency clock signals

(2009) B. Sprenger et al.   OPTICS LETTERS

Measuring the frequency of a Sr optical lattice clock using a 120 km coherent optical transfer

(2009) F.-L. Hong et al.   OPTICS LETTERS

Optical frequency transfer via 146 km fiber link with 10^−19 relative accuracy

(2009) G. Grosche et al.   OPTICS LETTERS

Many-Body Treatment of the Collisional Frequency Shift in Fermionic Atoms

(2009) A. M. Rey et al.   PHYSICAL REVIEW LETTERS

Multiply Charged Thorium Crystals for Nuclear Laser Spectroscopy

(2009) C. J. Campbell et al.   PHYSICAL REVIEW LETTERS

Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions

(2009) Kurt Gibble   PHYSICAL REVIEW LETTERS

Absolute Frequency Measurement of theCa+404s S1/22−3d D5/22Clock Transition

(2009) M. Chwalla et al.   PHYSICAL REVIEW LETTERS

Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers

(2009) A. V. Gorshkov et al.   PHYSICAL REVIEW LETTERS

Prospects for a Millihertz-Linewidth Laser

(2009) D. Meiser et al.   PHYSICAL REVIEW LETTERS

Spin-1/2Optical Lattice Clock

(2009) N. Lemke et al.   PHYSICAL REVIEW LETTERS

Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit

(2009) J. Appel et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Probing Interactions Between Ultracold Fermions

(2009) G. K. Campbell et al.   SCIENCE

86-km optical link with a resolution of 2 × 10-18 for RF frequency transfer

(2008) O. Lopez et al.   EUROPEAN PHYSICAL JOURNAL D

Optical frequency synthesis and measurement using fibre-based femtosecond lasers

(2008) G. Grosche et al.   EUROPEAN PHYSICAL JOURNAL D

Einstein Gravity Explorer–a medium-class fundamental physics mission

(2008) S. Schiller et al.   EXPERIMENTAL ASTRONOMY

Quantum physics exploring gravity in the outer solar system: the SAGAS project

(2008) P. Wolf et al.   EXPERIMENTAL ASTRONOMY

The Stability of an Optical Clock Laser Transferred to the Interrogation Oscillator for a Cs Fountain

(2008) B. Lipphardt et al.   IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

Long-distance frequency transfer over an urban fiber link using optical phase stabilization

(2008) H. Jiang et al.   JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

High-stability transfer of an optical frequency over long fiber-optic links

(2008) P. A. Williams et al.   JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

The absolute frequency of the87Sr optical clock transition

(2008) Gretchen K Campbell et al.   METROLOGIA

A review of time and frequency transfer methods

(2008) Judah Levine   METROLOGIA

Entangled states of trapped atomic ions

(2008) Rainer Blatt et al.   NATURE

Drift-free femtosecond timing synchronization of remote optical and microwave sources

(2008) Jungwon Kim et al.   Nature Photonics

Optical frequency comb with submillihertz linewidth and more than 10 W average power

(2008) T. R. Schibli et al.   Nature Photonics

Optical lattice clocks with non-interacting bosons and fermions

(2008) Tomoya Akatsuka et al.   Nature Physics

Ion trap quantum gates with amplitude-modulated laser beams

(2008) Christian F Roos   NEW JOURNAL OF PHYSICS

Spin squeezing in optical lattice clocks via lattice-based QND measurements

(2008) D Meiser et al.   NEW JOURNAL OF PHYSICS

Determination of Sr properties for a high-accuracy optical clock

(2008) S. G. Porsev et al.   PHYSICAL REVIEW A

Dipole polarizabilities ofns2 S10andnsnp P30states and relevant magic wavelengths of group-IIB atoms

(2008) Anpei Ye et al.   PHYSICAL REVIEW A

Hyperfine quenching of the2s2pP03state of berylliumlike ions

(2008) K. T. Cheng et al.   PHYSICAL REVIEW A

Frequency evaluation of the doubly forbiddenS01→P03transition in bosonicYb174

(2008) N. Poli et al.   PHYSICAL REVIEW A

Absolute frequency measurement of the magnesium intercombination transitionS01→P13

(2008) Jan Friebe et al.   PHYSICAL REVIEW A

Subhertz linewidth diode lasers by stabilization to vibrationally and thermally compensated ultralow-expansion glass Fabry-Pérot cavities

(2008) J. Alnis et al.   PHYSICAL REVIEW A

Frequency Shifts in an Optical Lattice Clock Due to Magnetic-Dipole and Electric-Quadrupole Transitions

(2008) A. V. Taichenachev et al.   PHYSICAL REVIEW LETTERS

Optical Lattice Induced Light Shifts in an Yb Atomic Clock

(2008) Z. Barber et al.   PHYSICAL REVIEW LETTERS

Doppler-Free Spectroscopy of theS01−P03Optical Clock Transition in Laser-Cooled Fermionic Isotopes of Neutral Mercury

(2008) M. Petersen et al.   PHYSICAL REVIEW LETTERS

New Limits on Coupling of Fundamental Constants to Gravity UsingSr87Optical Lattice Clocks

(2008) S. Blatt et al.   PHYSICAL REVIEW LETTERS

Trapping of Neutral Mercury Atoms and Prospects for Optical Lattice Clocks

(2008) H. Hachisu et al.   PHYSICAL REVIEW LETTERS

Quantum Computing with Alkaline-Earth-Metal Atoms

(2008) Andrew J. Daley et al.   PHYSICAL REVIEW LETTERS

Quantum computing with trapped ions

(2008) H HAFFNER et al.   PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS

Sr Lattice Clock at 1 x 10-16 Fractional Uncertainty by Remote Optical Evaluation with a Ca Clock

(2008) A. D. Ludlow et al.   SCIENCE

Quantum State Engineering and Precision Metrology Using State-Insensitive Light Traps

(2008) J. Ye et al.   SCIENCE

Frequency Ratio of Al+ and Hg+ Single-Ion Optical Clocks; Metrology at the 17th Decimal Place

(2008) T. Rosenband et al.   SCIENCE