When intense quantum light knocks electrons out of atoms, the statistics of the light can be transferred to the electrons. Strong-field ionization—a process in which intense laser light strips ...

A decades-old neutrino mystery might be solved not by undiscovered physics but by improved calculations. For more than 30 years, scientists have found that roughly 20% fewer electron neutrinos are ...

Two studies find that fundamental quantum constraints rule out a previously proposed neutrino-laser scheme. In last year’s proposal of a neutrino laser, the researchers sought to exploit the same ...

New experiments suggest that superconductivity in twisted bilayer graphene depends on an unconventional electron-pairing mechanism. Figure 1: Two twisted bilayer graphene (TBG) layers stacked one on ...

Through a quantum-switch experiment, researchers attempt to reveal “indefinite causal order”—a quantum phenomenon involving events in a before-and-after superposition. Artistic rendition of the ...

The centennial celebrations of quantum mechanics were a clear focal point for us this year, but 2025 brought important advances across every corner of physics. New observatories offered fresh views of ...

Two direct-detection experiments see no evidence of a signal reported by their predecessor. In 1997, the DAMA/NaI experiment observed a signal whose annual variability was suggestive of dark matter.

A Bose-Einstein condensate of radioactive atoms could turn into a source of intense, coherent, and directional neutrino beams, according to a theoretical proposal. Figure 1: Top: At high temperature, ...

The distribution of dark matter around a pair of colliding galaxy clusters appears unaffected by a putative dark-sector version of electromagnetism. Dark matter, by definition, does not participate in ...

Researchers have proposed methods to tune the properties of altermagnets, a step toward practical applications for this new form of magnet. New theoretical work outlines how to create a switchable ...

The demonstration that ions can be precisely manipulated in a trap containing integrated photonics paves the way for a large-scale trapped-ion quantum processor. Figure 1: Mordini and colleagues ...

The creation of modern quantum mechanics was a messy business in which many of the participants did not grasp the significance of their own discoveries. The wave nature of electrons is revealed in ...