Search results for quanta

Quantum Physics Jul 27, 2021

How quantum fields could be used to break low-temperature records

At first glance, heat and cold do not have much to do with quantum physics. A single atom is neither hot nor cold. Temperature can traditionally only be defined for objects that consist of many particles. But at TU Wien, ...

Optics & Photonics Jul 22, 2021

Antimatter from laser pincers

In the depths of space, there are celestial bodies where extreme conditions prevail: Rapidly rotating neutron stars generate super-strong magnetic fields. And black holes, with their enormous gravitational pull, can cause ...

Optics & Photonics Jun 18, 2021

Graphene drum: A new phonon laser design

Professor Konstantin Arutyunov of the HSE Tikhonov Moscow Institute of Electronics and Mathematics (MIEM HSE), together with Chinese researchers, has developed a graphene-based mechanical resonator, in which coherent emission ...

Optics & Photonics Jun 17, 2021

Probing the dynamics of photoemission

Almost a century ago, Albert Einstein received the Nobel Prize for Physics for his explanation of the photoelectric effect. Published in 1905, Einstein's theory incorporated the idea that light is made up of particles called ...

General Physics Jun 17, 2021

Vortex, the key to information processing capability: Virtual physical reservoir computing

In recent years, physical reservoir computing, one of the new information processing technologies, has attracted much attention. This is a physical implementation version of reservoir computing, which is a learning method ...

General Physics Jun 2, 2021

World's smallest, best acoustic amplifier emerges from 50-year-old hypothesis

Scientists at Sandia National Laboratories have built the world's smallest and best acoustic amplifier. And they did it using a concept that was all but abandoned for almost 50 years.

General Physics May 20, 2021

Researchers flip the motion of electrons on ultrafast time scales without slowing them down

To change the direction of motion of a massive object, such as a car, it has to be slowed down and brought to a complete standstill first. Even the tiniest charge carriers in the universe, the electrons, follow this rule. ...

Optics & Photonics May 4, 2021

Complex shapes of photons to boost future quantum technologies

As the digital revolution has now become mainstream, quantum computing and quantum communication are rising in the consciousness of the field. The enhanced measurement technologies enabled by quantum phenomena, and the possibility ...

Nanophysics Mar 31, 2021

Curved plasmonic fluxes reveal new way to practical light manipulation within nanoscal

Scientists from Tomsk Polytechnic University jointly with Russian colleagues and researchers from Technical University of Denmark the first time have experimentally proved the existence of a two-dimensional (2D) curved flux ...

Nanophysics Mar 25, 2021

New class of versatile, high-performance quantum dots primed for medical imaging, quantum computing

A new class of quantum dots deliver a stable stream of single, spectrally tunable infrared photons under ambient conditions and at room temperature, unlike other single photon emitters. This breakthrough opens a range of ...

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