Browse Physics

A newly-developed “quantum microscope” uses photoionization and an electrostatic magnifying lens to directly observe the electron orbitals of an excited hydrogen atom.

The LiHe van der Waals molecule has been produced and spectroscopically detected and its binding energy found to only suffice to stabilize a single rotationless vibrational state.

Two separate groups demonstrate the temporary storage and subsequent release of photons using very different quantum devices.

Atom interferometry in free fall demonstrates fundamental quantum physics and a new level of technology readiness for future experiments in space.

A new experiment reveals the different dynamics of particles and holes in ultracold fermionic gases in an optical lattice, opening the way to investigate condensed matter transport phenomena such as photoconductivity via quantum optical systems.

Light pulses with few optical cycles and defined carrier-envelope phase can induce selective photofragmentation of molecules on the attosecond timescale.

Measurements of the heat capacity in two-dimensional helium-$3$ adsorbed on graphite provide further evidence of an unexpected liquid state at temperatures near absolute zero.

The demonstration of a single-particle interferometer opens the door to a number of applications, from investigations of gravity to surface impact physics.

An analog of the dynamical Casimir effect has been achieved, where phonons replace photons and thermal fluctuations replace vacuum fluctuations.

Optical atomic clocks now outperform the best microwave cesium atomic clocks in terms of precision.

Ultracold atoms can coherently scatter backwards from a disordered potential in a way similar to classical waves.

A laser-based scheme allows cooling of molecules down to their lowest electronic, vibrational, and rotational state.

Researchers propose how to realize time crystals, structures whose lowest-energy states are periodic both in time and space.

Experimentalists simulate the effects of spin-orbit coupling in ultracold Fermi gases, paving the way for the creation of new exotic phases of matter.

Two separate experiments have demonstrated the fast transport of trapped ions using trapping potentials that trace out the path for the ions to follow.