Browse Physics

In laser metrology, adding additional laser pulses, separated in time from the first, suppresses energy line shifts and allows for even more precision.

An optomechanical system in which light and matter exchange roles promises new kinds of quantum states.

Theoretical models edge closer to explaining how photoionization is affected by many-body interactions.

Dense clouds of cold atoms have been produced in thin optical fibers.

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

Light from an ultraviolet frequency comb allows researchers to push the boundaries in precision spectroscopy, experimental tests of quantum electrodynamics, and atomic clocks.

Early results from the Linac Coherent Light Source expose the inner dynamics of molecules during ionization with ultrashort x-ray pulses.

Forces on an atom from a fiber less than an optical wavelength in diameter may provide answers in quantum optics.

Simulations address whether magnetic ordering is achievable with cold atoms in optical lattices.

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.

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.

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

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

Lasers can make an opaque material transparent, but to determine how long this state survives, you have to shut off the lights.

Successive and rapid measurements of a quantum system can prevent it from evolving in time. This quantum Zeno effect has now been demonstrated for light inside a cavity.