Now, applied physicists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have invented a new type of interferometer that allows precise control of light’s frequency, intensity and mode in one compact package.

A quantum “miracle material” could support magnetic switching, a team of researchers at the University of Regensburg and University of Michigan has shown. his recently discovered capability could help enable applications in quantum computing, sensing and more. While earlier studies identified that quantum entities called excitons are sometimes effectively confined to a single line within the material chromium sulfide bromide, the new research provides a thorough theoretical and experimental demonstration explaining how this is connected to the magnetic order in the material.

In a new study published in Physical Review Letters, JILA Fellow and University of Colorado Boulder physics professor Cindy Regal, along with former JILA Associate Fellow Jose D’Incao (currently an assistant professor of physics at the University of Massachusetts, Boston) and their teams developed new experimental and theoretical techniques for studying the rates at which light-assisted collisions occur in the presence of small atomic energy splittings. Their results rely upon optical tweezers—focused lasers capable of trapping individual atoms—that the team used to isolate and study the products of individual pairs of atoms.

Now, researchers at JILA, led by JILA Fellows and University of Colorado physics professors Margaret Murnane and Henry Kapteyn, along with graduate students Emma Nelson, Theodore Culman, Brendan McBennett, and former JILA postdoctoral researchers Albert Beardo and Joshua Knobloch, have developed a novel microscope that makes examining these materials possible on an unprecedented scale. The team’s work, recently published in Physical Review Applied, introduces a tabletop deep-ultraviolet (DUV) laser that can excite and probe nanoscale transport behaviors in materials such as diamond.

A kind of ‘umbilical cord’ between different quantum states can be found in some materials. Researchers at TU Wien have now shown that this ‘umbilical cord’ is generic to many materials.

Experiments show that applied voltage can dramatically alter the magnetic properties of quantum materials.

In a recent breakthrough, scientists from Okayama University in Japan developed nanodiamond sensors bright enough for bioimaging, with spin properties comparable to those of bulk diamonds. The study, published in ACS Nano, on 16 December 2024, was led by Research Professor Masazumi Fujiwara from Okayama University, in collaboration with Sumitomo Electric Company and the National Institutes for Quantum Science and Technology.

A method developed at the University of Bonn could have potential applications for tap-proof communication.

The advance shows promise for creating compact, inexpensive, and portable light sources, which are crucial for space-based applications, biological and geological field research, and military operations.

More stable quantum experiments are made possible at TU Wien with new tricks – by ingeniously splitting Bose-Einstein condensates.