Search results for phonons

Analytical Chemistry Mar 21, 2023

Single-atom vibrational spectroscopy now sensitive at the level of chemical bonds

Researchers led by Prof. Zhou Wu from the University of Chinese Academy of Sciences (UCAS) and Prof. Sokrates T. Pantelides of Vanderbilt University have pushed the sensitivity of single-atom vibrational spectroscopy to the ...

Quantum Physics Mar 17, 2023

A scalable and programmable quantum phononic processor based on trapped ions

Quantum computing systems have the potential to outperform classical computers on some tasks, helping to solve complex real-world problems in shorter times. Research teams worldwide have thus been trying to realize this quantum ...

Condensed Matter Mar 16, 2023

Study uncovers the fundamental mechanisms underlying the formation of polarons in 2D atomic crystals

Polarons are localized quasiparticles that result from the interaction between fermionic particles and bosonic fields. Specifically, polarons are formed when individual electrons in crystals distort their surrounding atomic ...

Condensed Matter Mar 8, 2023

Viable superconducting material created at low temperature and low pressure (Retracted paper)

In a historic achievement, University of Rochester researchers have created a superconducting material at both a temperature and pressure low enough for practical applications.

Condensed Matter Mar 7, 2023

Coherent phonon-induced gigahertz optical birefringence realized in strontium titanate

Using ultrafast time-resolved pump detection technology, researchers led by Prof. Sheng Zhigao from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences have realized the gigahertz (GHz) frequency ...

Optics & Photonics Mar 6, 2023

Researchers achieve nonreciprocal frequency conversion with optical and mechanical modes

Recently, a research team led by Prof. Guo Guangcan from the University of Science and Technology of China (USTC) demonstrated nonreciprocal routing between any two modes with different frequencies through radiation pressure ...

General Physics Feb 28, 2023

Observing phononic skyrmions based on the hybrid spin of elastic waves

Skyrmions are extremely small with diameters in the nanoscale, and they behave as particles suited for information storage and logic technologies. In 1961, Tony Skyrme formulated a manifestation of the first topological defect ...

General Physics Feb 23, 2023

Neutrons reveal key to extraordinary heat transport

Warming a crystal of the mineral fresnoite, Oak Ridge National Laboratory scientists discovered that excitations called phasons carried heat three times farther and faster than phonons, the excitations that usually carry ...

Optics & Photonics Feb 23, 2023

Writing on glass and silica indicates novel direction for chiral optical property tailoring

From fundamental physics of light-matter interaction to fabrication of targeted optical properties in highly complex optical engineering, the femtosecond (fs) laser plays a crucial role in laser manufacturing. Ultrashort ...

Optics & Photonics Feb 17, 2023

Tapered optical fiber addresses challenge posed by Brillouin scattering

When optical beams, consisting of photons, travel through fibers, they cause vibrations that generate acoustic waves, consisting of phonons. The phenomenon, called Brillouin scattering, has been harnessed by researchers to ...

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