Echoes, sounds that are repeated or reverberate as a result of waves reflected back to the listener, occur in several physical systems. In physics research, echoes are typically used to eliminate the effects of dephasing caused by a system's interactions with the...
PHYS.ORG
Researchers achieve ultrafast spin-orbit torque switching in ferrimagnetic devices
Spin-orbit torque (SOT) magnetization switching is a phenomenon induced by a spin current, which is in turn generated by a charge current. Eliciting this phenomenon could help to manipulate the magnetization in spintronic devices, potentially increasing their...
3-D trapping of Rydberg atoms in holographic optical bottle beam traps
Researchers at CNRS, Université Paris-Saclay in France have recently demonstrated the 3-D trapping of atoms in a Rydberg state inside holographic optical bottle beam traps. Their demonstration, outlined in a paper published in Physical Review Letters, could have...
A design principle for creating selective and robust electrocatalytic interfaces
To effectively counteract climate change and meet rising global energy requirements, humans must drastically change their methods for generating energy. New catalysts for a carbon-neutral conversion of energy could be of great help in facing these challenges,...
A new strategy for directly detecting light particle dark matter
For almost a century, astronomers have hypothesized that the universe contains more matter than what can be observed by the human eye. It is now believed that approximately 80 percent of the universe's mass is made up of a type of matter that does not emit light or...
Applying advantage distillation to device-independent quantum key distribution (DIQKD)
Researchers at ETH Zürich and National University of Singapore have carried out a study investigating whether advantage distillation, a classical cryptography technique that has so far never been successfully implemented, can be applied to device-independent quantum...
High-precision distributed sensing using an entangled quantum network
Quantum-enhanced metrology has been an active area of research for several years now due to its many possible applications, ranging from atomic clocks to biological imaging. Past physics research established that having a non-classical probe, such as squeezed light or...
Researchers discover a unique orbital texture in single-layer of 3-D material
New physical behavior, such as Mott insulating behavior, unconventional superconductivity and quantum spin liquid behavior, occurs when electrons inside a material interact with each other. When electrons are confined to lower dimensions such as 2-D planes, these...
The first observation of the nuclear Barnett effect
The electronic Barnett effect, first observed by Samuel Barnett in 1915, is the magnetization of an uncharged body as it is spun on its long axis. This is caused by a coupling between the angular momentum of the electronic spins and the rotation of the rod.
The optomechanical Kerker effect: Controlling light with vibrating nanoparticles
For the Kerker effect to occur, particles need to have electric and magnetic polarizabilities of the same strength. This, however, is very challenging to achieve, as magnetic optical resonances in small particles are relatively weak. Researchers at Ioffe Institute, in...