The concept of dielectric-laser acceleration provides the highest gradients among breakdown-limited (nonplasma) particle accelerators. However, stable beam transport and staging have not been shown experimentally yet. We present a scheme that confines the beam longitudinally and … | Continue reading
Researchers have created a material that acts as a magnetic diode, transferring magnetism from one object to another but not the other way around. | Continue reading
New experiments reveal two bands of excitation for spin waves in the insulating honeycomb ferromagnet CrI${}_{3}$, showing promise for potential spintronic applications. | Continue reading
We study the mutual coupling of spin fluctuations and lattice vibrations in paramagnetic CrN by combining atomistic spin dynamics and ab initio molecular dynamics. The two degrees of freedom are dynamically coupled, leading to nonadiabatic effects. Those effects suppress the phon … | Continue reading
Trapping of bodies by waves is extended from electromagnetism to gravity. It is shown that gravitational waves endowed with angular momentum may accumulate near its axis all kinds of cosmic debris. The trapping mechanism in both cases can be traced to the Coriolis force associate … | Continue reading
Using a noncontact atomic force microscope, we track and manipulate the position of single electrons confined to atomic structures engineered from silicon dangling bonds on the hydrogen terminated silicon surface. An attractive tip surface interaction mechanically manipulates the … | Continue reading
A photonic quantum switch between a pair of operations is constructed such that the causal order of operations cannot be distinguished, even in principle. | Continue reading
By manipulating the momenta of ultracold atoms, researchers demonstrate a quantum walk---a potential ingredient for quantum search algorithms. | Continue reading
Researchers have mathematically proven that a powerful classical machine learning algorithm should work on quantum computers. | Continue reading
Inspired by a text-mining technique, scientists have developed a more direct way to distinguish quark jets from gluon jets in high-energy particle collisions. | Continue reading