Betaenglish: cuantum
English: quantum
Spanish: cuántico
824. Photon-transistors for the supercomputers of the future
Niels Bohr Institute and Harvard University scientists have worked out a new theory that describes how the necessary transistors for the quantum computers of the future may be created by allowing for photons to process data directly, rather than slow...
833. Blueprints drawn up for quantum computer RAM
Scuola Normale Superiore researchers have proposed a method for retrieving quantum information from memory that should make total quantum recall more reliable....
850. Photons flout the light speed limit
University of Koblenz physicists are claiming they have propelled photons faster than the speed of light, using quantum tunneling across a barrier gap of up...
855. Ultrafast quantum computer uses optically controlled electrons
Stanford University scientists have designed a scheme to create one of the fastest quantum computers to date, using light pulses to rotate electron spins, which serve as quantum bits. ...
1045. Pulsed tunneling maps out an electron system’s density of states
Landau levels, spin splitting, and other features of a quantum Hall system come sharply into view when electrons tunnel through a tiny capacitor.
1997. Researchers set new record for brightness of quantum dots
By placing quantum dots on a specially designed photonic crystal, University of Illinois researchers have demonstrated enhanced fluorescence intensity by a factor of up to 108. Potential applications include high-brightness light-emitting diodes,...
1999. Quantum physics cools down computers
Stanford researchers have drastically reduced the heat produced by electron flow in semiconductors by using the Quantum Spin Hall Effect, which aligns the spin of electrons. Under these extraordinary conditions, the current flows only along the e...
2094. Mankind 'shortening the universe's life'
Astronomers may have accidentally nudged the universe closer to its death by observing dark energy, two astronomers suggest, based on quantum theory. ...
2130. Line Between Quantum And Classical Worlds Is At Scale Of Hydrogen Molecule
Researchers at the Department of Energy's Lawrence Berkeley National Laboratory and their collaborators at the University of Frankfurt, Germany; Kansas State University; and Auburn University have now established that quantum particles start behaving...
2162. 'Light trap' is a step towards quantum memory
Two teams have independently succeeded in placing a cloud of chilled rubidium atoms within an optical cavity composed of a Bose-Einstein condensate, which traps light between two opposed mirrors. The combination could one day form a quantum memory el...
2189. Physics update
Particle-physics technology meets the eye; Dynamic quantum dots with tunneling; An ultrafast, ultralarge change in reflectivity; A new way to control cardiac chaos