Quantum sensing

CL Degen, F Reinhard, P Cappellaro - Reviews of modern physics, 2017 - APS
“Quantum sensing” describes the use of a quantum system, quantum properties, or quantum
phenomena to perform a measurement of a physical quantity. Historical examples of …

Optical atomic clocks

AD Ludlow, MM Boyd, J Ye, E Peik, PO Schmidt - Reviews of Modern Physics, 2015 - APS
Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Quantum metrology with nonclassical states of atomic ensembles

L Pezze, A Smerzi, MK Oberthaler, R Schmied… - Reviews of Modern …, 2018 - APS
Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

Advances in quantum metrology

V Giovannetti, S Lloyd, L Maccone - Nature photonics, 2011 - nature.com
The statistical error in any estimation can be reduced by repeating the measurement and
averaging the results. The central limit theorem implies that the reduction is proportional to …

Entangled states of trapped atomic ions

R Blatt, D Wineland - Nature, 2008 - nature.com
To process information using quantum-mechanical principles, the states of individual
particles need to be entangled and manipulated. One way to do this is to use trapped, laser …

Nonlinear atom interferometer surpasses classical precision limit

C Gross, T Zibold, E Nicklas, J Esteve, MK Oberthaler - Nature, 2010 - nature.com
Interference is fundamental to wave dynamics and quantum mechanics. The quantum wave
properties of particles are exploited in metrology using atom interferometers, allowing for …

Long-lived Bell states in an array of optical clock qubits

N Schine, AW Young, WJ Eckner, MJ Martin… - Nature Physics, 2022 - nature.com
The generation of long-lived entanglement in optical atomic clocks is one of the main goals
of quantum metrology. Arrays of neutral atoms, where Rydberg-based interactions may …

Quantum spin squeezing

J Ma, X Wang, CP Sun, F Nori - Physics Reports, 2011 - Elsevier
This paper reviews quantum spin squeezing, which characterizes the sensitivity of a state
with respect to SU (2) rotations, and is significant for both entanglement detection and high …

The elusive Heisenberg limit in quantum-enhanced metrology

R Demkowicz-Dobrzański, J Kołodyński… - Nature …, 2012 - nature.com
Quantum precision enhancement is of fundamental importance for the development of
advanced metrological optical experiments, such as gravitational wave detection and …

Nobel Lecture: Superposition, entanglement, and raising Schrödinger's cat

DJ Wineland - Reviews of Modern Physics, 2013 - APS
Nobel Lecture: Superposition, entanglement, and raising Schrodinger ’s cat* Page 1 Nobel
Lecture: Superposition, entanglement, and raising Schrodinger ’s cat* David J. Wineland …