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Quantum Âé¶¹ÒùÔºics Dec 13, 2021

Quantum algorithms bring ions to a standstill

Laser beams can do more than just heat things up; they can cool them down too. That is nothing new for physicists who have devoted themselves to precision spectroscopy and the development of optical atomic clocks. But what ...

Optics & Photonics Dec 9, 2021

Towards quantum states of sound

Researchers make key steps towards generating quantum states of sound inside a microscopic device using laser light and single-photon measurements.

General Âé¶¹ÒùÔºics Nov 30, 2021

Researchers generate, for the first time, a vortex beam of atoms and molecules

Vortices may conjure a mental image of whirlpools and tornadoes—spinning bodies of water and air—but they can also exist on much smaller scales. In a new study published in Science, researchers from the Weizmann Institute ...

Quantum Âé¶¹ÒùÔºics Nov 1, 2021

Trapping spins with sound

The captured electrons typically absorb light in the visible spectrum, so that a transparent material becomes colored under the presence of such centers, for instance in diamond. "Color centers are often coming along with ...

Optics & Photonics Oct 21, 2021

A traffic light for light-on-a-chip

Integrated photonics allow us to build compact, portable, low-power chip-scale optical systems used in commercial products, revolutionizing today's optical datacenters and communications. But integrating on-chip optical gain ...

Quantum Âé¶¹ÒùÔºics Oct 1, 2021

How flawed diamonds 'lead' to flawless quantum networks

The color in a diamond comes from a defect, or "vacancy," where there is a missing carbon atom in the crystal lattice. Vacancies have long been of interest to electronics researchers because they can be used as 'quantum nodes' ...

Quantum Âé¶¹ÒùÔºics 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 Âé¶¹ÒùÔºics for his explanation of the photoelectric effect. Published in 1905, Einstein's theory incorporated the idea that light is made up of particles called ...

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