Latest Basic concepts of quantum mechanics Stories
Tokyo, Sept 10, 2010 - (JCN Newswire) - Institute for Nano Quantum Information Electronics, The University of Tokyo (Director: Yasuhiko Arakawa), Fujitsu Laboratories Limited, and NEC Corporation today announced that they have achieved quantum cryptographic key distribution(1) at a world-record distance of 50 km using transmission from a single-photon emitter(2).
A new paper by University of Notre Dame physicist BoldizsÃ¡r JankÃ³ and colleagues offers an important new understanding of an enduring mystery in chemical physics.
A quantum particle is hard to grasp, because one cannot determine all its properties precisely at the same time.
Princeton engineers have made a breakthrough in an 80-year-old quandary in quantum physics, paving the way for the development of new materials that could make electronic devices smaller and cars more energy efficient.
Max Planck physicists develop an experiment to investigate the random motion of quantum particles.
U.S. scientists say they have created the world's smallest incandescent lamp to explore the boundary between thermodynamics and quantum mechanics. The UCLA researchers said thermodynamics concerns systems with many particles while quantum mechanics works best when applied to just a few.
Researchers from UCLA have created the worldâ€™s smallest incandescent lamp in an attempt to better understand how the physics of large things and the physics of invisible things may be related.
Nearly a century after Danish physicist Niels Bohr offered his planet-like model of the hydrogen atom, a Rice University-led team of physicists has created giant, millimeter-sized atoms that resemble it more closely than any other experimental realization yet achieved.
Ultracold atoms moving through a carefully designed arrangement of laser beams will jiggle slightly as they go, two NIST scientists have predicted.* If observed, this never-before-seen â€œjitterbugâ€ motion would shed light on a little-known oddity of quantum mechanics arising from Paul Diracâ€™s 80-year-old theory of the electron.
In the macroscopic world of everyday life we often have 'deterministic chaos'. Events like weather and ocean currents, the movement of heavenly bodies, or the growth of insect populations can all be described in exact formulas. They are indeed 'deterministic'. But the way they proceed in reality is highly sensitive to initial values. Even the smallest failure to measure the initial conditions can make a long-term prediction impossible. Physicists call such systems 'chaotic'.
- A gift; a largess; a gratuity; a present; a dole.