Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

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 …

Modern quantum technologies in the fields of quantum computing, quantum simulation, and
quantum metrology require the creation and control of large ensembles of entangled …

Interferometers with atomic ensembles are an integral part of modern precision metrology.
However, these interferometers are fundamentally restricted by the shot noise limit, which …

Many-body systems at low temperatures generally organize themselves into ordered
phases, whose nature and symmetries are captured by an order parameter. This order …

Discrete symmetries are spatially ubiquitous but are often hidden in internal states of
systems where they can have especially profound consequences. In this work we create and …

Quantum mechanics predicts that our physical reality is influenced by events that can
potentially happen but factually do not occur. Interaction-free measurements (IFMs) exploit …

We investigate the phase-transition dynamics of a quasi-two-dimensional antiferromagnetic
spin-1 Bose-Einstein condensate from the easy-axis polar phase to the easy-plane polar …

Compared to single-component Bose-Einstein condensates, spinor Bose-Einstein
condensates display much richer dynamics. In addition to density oscillations, spinor Bose …

We report the observation of stationary turbulence in antiferromagnetic spin-1 Bose-Einstein
condensates driven by a radio-frequency magnetic field. The magnetic driving injects energy …