Browse Physics

Researchers predict that modifying the design of atomic clocks could make them ten times more accurate than the current standard.

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.

Improved data from positron scattering off krypton may lead to advances in certain techniques in tomography and spectroscopy.

An optical cavity can track the trajectory of atoms with submicron resolution.

Atom trap analysis has reached new sensitivity limits in measuring the abundance of argon-39, a desirable isotope for dating environmental samples on the time scale of a few hundred years.

Experiments on trapped ions simulate the unusual quantum mechanics of relativistic particles.

Ultracold atoms trapped in optical lattices allow high-precision measurement of the gravitational constant.

Precision x-ray measurements hone in on a more accurate value of Avogadro’s constant.

New results predict that a well-known phase transition in two dimensions should also be observable optically.

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.

A switch made from a molecule and an atom can be reliably turned on and off many times, and its inventors recorded its motion in great detail. It could be used in future nanoscale circuits.

According to simulations, ultrashort electron pulses could serve as probes of the rapid motion of atomic or molecular electrons, such as the “breathing” of an excited atom or the shuttling of an electron between atoms in a molecule.

The interface between two Bose-Einstein condensates may provide new physical insights into fluid dynamics.

Cold antihydrogen has been synthesized in a setup that could lead to an antihydrogen beam suitable for precision CPT tests.

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

Three Bose-Einstein condensates can be merged to create controlled arrays of exotic topological structures, according to theory.

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.

In a synthesis of condensed matter physics and atomic and molecular physics, graphene flakes are levitated and spun in an ion trap.