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 …

Spinor Bose gases: Symmetries, magnetism, and quantum dynamics

DM Stamper-Kurn, M Ueda - Reviews of Modern Physics, 2013 - APS
Spinor Bose gases form a family of quantum fluids manifesting both magnetic order and<?
format?> superfluidity. This article reviews experimental and theoretical progress in …

Solid-state electronic spin coherence time approaching one second

N Bar-Gill, LM Pham, A Jarmola, D Budker… - Nature …, 2013 - nature.com
Solid-state spin systems such as nitrogen-vacancy colour centres in diamond are promising
for applications of quantum information, sensing and metrology. However, a key challenge …

Quantum field simulator for dynamics in curved spacetime

C Viermann, M Sparn, N Liebster, M Hans, E Kath… - nature, 2022 - nature.com
In most cosmological models, rapid expansion of space marks the first moments of the
Universe and leads to the amplification of quantum fluctuations. The description of …

Coherent spin manipulation of individual atoms on a surface

K Yang, W Paul, SH Phark, P Willke, Y Bae, T Choi… - Science, 2019 - science.org
Achieving time-domain control of quantum states with atomic-scale spatial resolution in
nanostructures is a long-term goal in quantum nanoscience and spintronics. Here, we …

Ultracold atoms out of equilibrium

T Langen, R Geiger… - Annu. Rev. Condens …, 2015 - annualreviews.org
The relaxation of isolated quantum many-body systems is a major unsolved problem
connecting statistical and quantum physics. Studying such relaxation processes remains a …

Deterministic entanglement generation from driving through quantum phase transitions

XY Luo, YQ Zou, LN Wu, Q Liu, MF Han, MK Tey, L You - Science, 2017 - science.org
Many-body entanglement is often created through the system evolution, aided by nonlinear
interactions between the constituting particles. These very dynamics, however, can also lead …

Fisher information and entanglement of non-Gaussian spin states

H Strobel, W Muessel, D Linnemann, T Zibold… - Science, 2014 - science.org
Entanglement is the key quantum resource for improving measurement sensitivity beyond
classical limits. However, the production of entanglement in mesoscopic atomic systems has …

Spin-nematic squeezed vacuum in a quantum gas

CD Hamley, CS Gerving, TM Hoang, EM Bookjans… - Nature Physics, 2012 - nature.com
The standard quantum limit of measurement uncertainty can be surpassed using squeezed
states, which minimize the uncertainty product in Heisenberg's relation by reducing the …

Quantum SU (1, 1) interferometers: Basic principles and applications

ZY Ou, X Li - APL Photonics, 2020 - pubs.aip.org
ABSTRACT A new type of quantum interferometer was recently realized that employs
parametric amplifiers (PAs) as the wave splitting and mixing elements. The quantum …