Search results for phonons

Quantum Physics Feb 16, 2024

Diamond quantum memory with Germanium vacancy exceeds coherence time of 20 ms

The color centers of diamond are the focus of an increasing number of research studies, due to their potential for developing quantum technologies. Some works have particularly explored the use of negatively-charged group-IV ...

Nanophysics Feb 15, 2024

Researchers capture strange behavior of laser-excited gold

New research, conducted at the Department of Energy's SLAC National Accelerator Laboratory, illuminates the strange behavior of gold when zapped with high-energy laser pulses.

Optics & Photonics Feb 14, 2024

A 'quantum leap' at room temperature: Ultra-low noise system achieves optical squeezing

In the realm of quantum mechanics, the ability to observe and control quantum phenomena at room temperature has long been elusive, especially on a large or "macroscopic" scale. Traditionally, such observations have been confined ...

Nanophysics Feb 12, 2024

What did the electron 'say' to the phonon in the graphene sandwich?

A TU/e and Catalan Institute of Nanoscience and Nanotechnology-led collaboration involving researchers from around the world has the answer, and the why, and the results have been published in the journal Science Advances.

Condensed Matter Feb 9, 2024

Evidence that atomically thin hafnium telluride is an excitonic insulator

The condensation of excitons with non-zero momentum can give rise to so-called charge density waves (CDW). This phenomenon can prompt the transition of materials into a fascinating new quantum phase, known as an excitonic ...

Nanophysics Feb 6, 2024

Breaking boundaries in quantum photonics: New nanocavities unlock new frontiers in light confinement

In a significant leap forward for quantum nanophotonics, a team of European and Israeli physicists has introduced a new type of polaritonic cavities and redefined the limits of light confinement. This pioneering work, detailed ...

Condensed Matter Feb 2, 2024

High harmonic spectroscopy retrieves electronic structure of high-pressure superconductors

High pressure has revealed surprising physics and created novel states in condensed matter. Exciting examples include near room temperature superconductivity (Tc > 200 K) in high-pressure hydrides such as H3S and LaH10.

Condensed Matter Jan 30, 2024

Researchers develop new model to predict surface atom scattering

A group of Cornell-led researchers in the Center for Bright Beams has developed a new theoretical approach to calculate how atoms scatter from surfaces. The method, developed by recently conferred Cornell physics Ph.D. Michelle ...

Superconductivity Jan 24, 2024

Simulation observes three distinct phases of superconducting dynamics

In physics, scientists have been fascinated by the mysterious behavior of superconductors—materials that can conduct electricity with zero resistance when cooled to extremely low temperatures. Within these superconducting ...

Nanophysics Jan 24, 2024

Overcoming optical loss in a polariton system with synthetic complex frequency waves

A collaborative research team co-led by Professor Shuang Zhang, the Interim Head of the Department of Physics, The University of Hong Kong (HKU), along with Professor Qing DAI from National Center for Nanoscience and Technology, ...

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