Simple theory may explain dark matter
Most of the matter in the universe may be made out of particles that possess an unusual, donut-shaped electromagnetic field called an anapole.
Theorists apply loop quantum gravity theory to black hole
Material low-temperature properties can be predicted from its symmetry
A sphere looks the same no matter how it is rotated. Squash it on one side, however, and this symmetry is broken. A similar change from a high-symmetry state to a low-symmetry state defines many phase transitions ...
Researchers test quantum encryption hacking risk
(Phys.org) —Quantum communication systems offer the promise of virtually unbreakable encryption. Unlike classical encryption, which is used to send secure data over networks today and whose security depends ...
Tailoring optical processors: Arranging nanoparticles in geometric patterns allows for control of light with light
Rice University scientists have unveiled a robust new method for arranging metal nanoparticles in geometric patterns that can act as optical processors that transform incoming light signals into output of ...
Graphene-boron mix shows promise for lithium-ion batteries
Frustration led to revelation when Rice University scientists determined how graphene might be made useful for high-capacity batteries.
The changing phase of quantum materials: Theoretical model could aid search for ideal material for quantum computers
Matter is categorized as either conductive, semi-conductive or resistive to the flow of electrons based on its bulk properties. However, physicists have now predicted a new state of matter in which the bulk ...
Did the universe evolve to make black holes?
(Phys.org) —The maths underpinning Darwin's theory of natural selection could explain how the universe may be 'designed' to make black holes.
Even graphene has weak spots: Theorists find junctions in polycrystalline graphene sap its strength
(Phys.org) —Graphene, the single-atom-thick form of carbon, has become famous for its extraordinary strength. But less-than-perfect sheets of the material show unexpected weakness, according to researchers ...
Magnetic fingerprints of interface defects in silicon solar cells detected
Using a highly sensitive method of measurement, HZB physicists have managed to localize defects in amorphous/crystalline silicon heterojunction solar cells. Now, for the first time ever, using computer simulations ...
Scientists observe coherent propagation of single spin impurity in a chain of ultracold atoms
Many discoveries in physics came as a big surprise – for example the phenomenon, that some materials loose almost all their electrical resistance at low temperatures, or that others become superconductors ...
Does probability come from quantum physics?
(Phys.org)—Ever since Austrian scientist Erwin Schrodinger put his unfortunate cat in a box, his fellow physicists have been using something called quantum theory to explain and understand the nature of waves and particles.
Gap geometry grasped: New algorithm could help understand structure of liquids, how they flow through porous media
Theoretical physicist Moumita Maiti and colleagues at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bangalore, India, have now implemented an algorithm for analysing void space in sphere ...
Flat boron by the numbers: Researchers calculate what it would take to make new 2-dimensional material
It would be a terrible thing if laboratories striving to grow graphene from carbon atoms kept winding up with big pesky diamonds.