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 form a family of quantum fluids manifesting both magnetic order and<?
format?> superfluidity. This article reviews experimental and theoretical progress in …

An overview of the physics of spinor and dipolar Bose–Einstein condensates (BECs) is
given. Mean-field ground states, Bogoliubov spectra, and many-body ground and excited …

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 …

Dynamical quantum phase transitions are closely related to equilibrium quantum phase
transitions for ground states. Here, we report an experimental observation of a dynamical …

Quantum control and measurement are two sides of the same coin. To affect a dynamical
map, well-designed time-dependent control fields must be applied to the system of interest …

A dynamical quantum phase transition can be characterized by a nonanalytic change in the
quench dynamics when a parameter in the governing Hamiltonian is varied. Such a …

We experimentally study spin dynamics in a sodium antiferromagnetic spinor condensate as
a result of spin-dependent interactions c and microwave dressing field interactions …

We have observed sub-Poissonian spin correlations generated by collisionally induced spin
mixing in a spin-1 Bose-Einstein condensate. We measure a quantum noise reduction of-7 …

A pendulum prepared perfectly inverted and motionless is a prototype of unstable
equilibrium and corresponds to an unstable hyperbolic fixed point in the dynamical phase …