Measurement noise 100 times lower than the quantum-projection limit using entangled atoms

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

Reduced spin measurement back-action for a phase sensitivity ten times beyond the standard quantum limit

(2014) J. G. Bohnet et al.   Nature Photonics

Fluorescence detection at the atom shot noise limit for atom interferometry

(2014) E Rocco et al.   NEW JOURNAL OF PHYSICS

Many-atom–cavity QED system with homogeneous atom–cavity coupling

(2014) Jongmin Lee et al.   OPTICS LETTERS

Cavity-aided nondemolition measurements for atom counting and spin squeezing

(2014) Zilong Chen et al.   PHYSICAL REVIEW A

Quantum-Limited Amplification and Entanglement in Coupled Nonlinear Resonators

(2014) C. Eichler et al.   PHYSICAL REVIEW LETTERS

Detecting Multiparticle Entanglement of Dicke States

(2014) Bernd Lücke et al.   PHYSICAL REVIEW LETTERS

Scalable Spin Squeezing for Quantum-Enhanced Magnetometry with Bose-Einstein Condensates

(2014) W. Muessel et al.   PHYSICAL REVIEW LETTERS

Biological measurement beyond the quantum limit

(2013) Michael A. Taylor et al.   Nature Photonics

Zero-Dead-Time Operation of Interleaved Atomic Clocks

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

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

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

Spin-nematic squeezed vacuum in a quantum gas

(2012) C. D. Hamley et al.   Nature Physics

Magnetic Sensitivity Beyond the Projection Noise Limit by Spin Squeezing

(2012) R. J. Sewell et al.   PHYSICAL REVIEW LETTERS

A gravitational wave observatory operating beyond the quantum shot-noise limit

(2011)   Nature Physics

Detecting inertial effects with airborne matter-wave interferometry

(2011) R. Geiger et al.   Nature Communications

Quantum tests of the equivalence principle with atom interferometry

(2010) Naceur Gaaloul et al.   ACTA ASTRONAUTICA

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

Orientation-Dependent Entanglement Lifetime in a Squeezed Atomic Clock

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

Quantum Enhancement of the Zero-Area Sagnac Interferometer Topology for Gravitational Wave Detection

(2010) Tobias Eberle et al.   PHYSICAL REVIEW LETTERS

States of an Ensemble of Two-Level Atoms with Reduced Quantum Uncertainty

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

Implementation of Cavity Squeezing of a Collective Atomic Spin

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

Spin Squeezing of a Cold Atomic Ensemble with the Nuclear Spin of One-Half

(2009) T. Takano 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