Browse Physics

A technique from ion spectroscopy reveals the quantum nature of a mechanical system at low temperature.

Theorists uncover a new way that interactions between highly excited atoms can affect the way they radiate.

Extremely high magnetic fields have been simulated by laser manipulation of atoms trapped in an optical lattice.

Absorption spectroscopy limited only by quantum noise has been demonstrated over a broad frequency range using laser frequency combs.

Theorists propose a recipe for directly measuring the topological order in non-interacting cold atom systems.

Coupling a silicon nitride membrane resonator with a gas of ultracold atoms offers a novel approach to controlling mechanical systems at the quantum level.

New beam splitter techniques extend the world of precision experiments with matter waves.

Excited cold atoms in Rydberg states behave similarly to certain spin systems, providing us with a versatile toolbox with which to study nonequilibrium phenomena.

A microscopic model offers new insight into a pernicious source of electric field noise in ion traps.

When it comes to probing ultracold atoms in optical lattices, has direct imaging put Bragg diffraction out of business?

Electrons join the growing technology to build integrated quantum circuits that guide matter waves on a chip.

A suitable optical lattice for cold atoms could produce a large effective magnetic field in which the atoms would realize analogs to quantum Hall states.

Photons (bosons) confined in a hollow waveguide containing an atomic gas could show spin-charge separation, which is more commonly associated with one-dimensional fermions.

Laser spectroscopy of positronium confined to nanoscale pores is a tool to probe the size of buried cavities and a step toward the long-term goal of a positronium BEC.

How does intrinsic heating from an optical lattice affect the quest for colder atom gases?

The experimental realization of quantum degenerate cold Fermi gases with large hyperfine spins opens up a new opportunity for exotic many-body physics.

Cold atoms in optical cavities can undergo a transition to a liquid-crystalline state in which the positions of the atoms are determined by the photon field.

A novel laser ionization technique allows better control and investigation of trapped molecular ions.

Transmission of light through an atomic vapor offers a way of replacing a conventional compass with an all-optical device.

New experiments resolve differences in measuring the viscosity of liquids confined to thin films at the molecular level.