Browse Physics

A new experimental scheme allows the controlled generation and observation of magnetic avalanches, a cascade of spin flips that propagates through a magnetic sample like a three-dimensional fire.

A newly discovered type of magnetoresistance, resulting from spin-dependent scattering at a metal-magnet interface, may potentially be used to study the magnetization in insulating magnets or to develop new spintronic devices.

Laser spectroscopy of cadmium isotopes confirms the applicability of the nuclear shell model, even for very complex structures.

Ultrathin screens made of metamaterials can bend or reshape a wave transmitted through them without generating any reflection.

A model shows that as the size of a brittle material grows, the probability that it will fracture from a single crack approaches $100\%$.

Researchers propose new ways to recreate fractional quantum Hall physics using ultracold atoms and molecules.

A model describing the brain as a system close to a phase transition can capture the global dynamics of brain activity observed in fMRI experiments.

A study of the thermoelectric properties of the doped insulator, strontium titanate, shows that it superconducts with the lowest charge density ever observed.

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.

The first results from the space-borne Alpha Magnetic Spectrometer confirm an unexplained excess of high-energy positrons in Earth-bound cosmic rays.

A major source of energy loss in laser-driven fusion could be remedied with the use of optical elements called zooming-phase plates.

Combining two spin-dependent effects generates a microwave signal that can be easily read to study the magnetization dynamics in a device with novel geometry.

Optical experiments let researchers fully characterize the quantum transformations corresponding to photon creation and annihilation operators.

The ATRAP Collaboration has measured the magnetic moment of the antiproton more precisely than ever before, allowing a new test of $CPT$ symmetry.

Phonon lasing—coherent amplification of phonons by stimulated emission—has been achieved in a purely acoustic analog of a three-level laser scheme.

New experiments show that holes in silicon can transport spin over surprisingly large distances, adding $p$-type semiconductors to the toolkit of materials for spintronics.

Contact with the environment usually destroys the delicate operations of a quantum computer, but engineered dissipative processes may allow for a more robust preparation and processing of quantum states.

$D$-mesons are the fourth in a quartet of neutral mesons to be observed oscillating into their antiparticle partners.

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

Water dimers have been detected in room-temperature water vapor, a key step toward understanding their effect on solar absorption and chemistry in the atmosphere.