Heisenberg-Limited Atom Clocks Based on Entangled Qubits

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

(2014) B. J. Bloom et al.   NATURE

Efficient Atomic Clocks Operated with Several Atomic Ensembles

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

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

(2013) J. Borregaard 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

Advances in quantum metrology

(2011) Vittorio Giovannetti 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

14-Qubit Entanglement: Creation and Coherence

(2011) Thomas Monz et al.   PHYSICAL REVIEW LETTERS

Entanglement-assisted atomic clock beyond the projection noise limit

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

Frequency Comparison of Two High-AccuracyAl+Optical Clocks

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

Spin-1/2Optical Lattice Clock

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

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

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