Browse Physics

Researchers propose a new scheme for laser cooling in the strong-coupling regime that is orders of magnitude faster than methods limited by the trap frequency.

Electromagnetically induced transparency produced by dark states in an artificial atom might find use as a switchable microwave mirror.

An important hurdle to achieve a positronium Bose condensate is overcome with the production of a population of fully polarized positronium atoms

A single-molecule junction on a silver surface exhibits orders-of-magnitude variation in conductance.

A single carbon nanotube held at a positive voltage can capture and ionize individual cold atoms with high efficiency.

Rubidium atoms trapped in optical lattices are shown to exhibit a magic-wavelength behavior.

A well-known model in condensed matter physics has now been applied to ultracold atoms in an optical lattice.

Researchers have constructed a new high accuracy optical clock based on quantum spectroscopy of an aluminum ion.

Highly excited atoms arranged in a circular lattice exhibit unusual many-particle states.

Acousto-optical techniques can be used to access a new regime of vortex nucleation in condensates in optical lattices with deep potential wells.

An NMR-based quantum computer can simulate a hydrogen molecule and accurately yield its ground-state energy.

The demonstration of entanglement between two neutral atoms would be a key step toward using them for quantum computation.

A new tool is developed to study dynamics of molecular dissociation under electron bombardment.

Improved optical techniques may permit direct cooling of molecules to form ultracold gases, instead of cooling the atoms first.

Ion traps can store quantum information with long coherence times and support universal quantum computations.

The properties of graphene might be studied from another angle by putting ultracold atoms into a hexagonal optical lattice.

Femtosecond light pulses at two different frequencies are effective in aligning and orienting molecules without the need for a strong static field.

A Bose-Einstein condensate of calcium atoms has been created, the first from alkaline earth elements and potentially useful for stable clocks and precision measurements.

The atoms in an optical lattice could form the basis for a complete circuit including a diode or a transistor.

Ultrafast optical probing of an ionized molecule with different pulse durations reveals details of the dynamics of vibrational excitations.