The Nature of Reality
Get flash to fully experience Pearltrees
Vortex Based Mathematics
Von Neumann entropy - Wikipedia, the free encyclopedia
In quantum statistical mechanics , von Neumann entropy , named after John von Neumann , is the extension of classical entropy concepts to the field of quantum mechanics . John von Neumann rigorously established the mathematical framework for quantum mechanics in his work Mathematische Grundlagen der Quantenmechanik . [ 1 ] In it, he provided a theory of measurement, where the usual notion of wave-function collapse is described as an irreversible process (the so-called von Neumann or projective measurement). The density matrix was introduced, with different motivations, by von Neumann and by Lev Landau .
Quantum Physic and the Kabbalah
Body
I n t r o d u ction. The article that follows this introduction featured in the science section of the 25th December 1999 edition of The Economist magazine. It gives a good idea of how hyperspace is treated in mainstream, leading edge physics. Hyperspace poses something of a dilemma for modern physics. On one hand it is very useful for explaining how the Universe is constructed at the very smallest level, and it even provides a useful concept for explaining what came "before" the beginning of time (click "stargate" for details µµµ ). On the other hand, hyper-dimensional space is incompatible with a Universe of matter as we know it.Quantum dot - Wikipedia, the free encyclopedia
Colloidal quantum dots irradiated with a UV light. Different sized quantum dots emit different color light due to quantum confinement. A quantum dot is a portion of matter (e.g., semiconductor ) whose excitons are confined in all three spatial dimensions . Consequently, such materials have electronic properties intermediate between those of bulk semiconductors and those of discrete molecules . [ 1 ] [ 2 ] [ 3 ] They were discovered at the beginning of the 1980s by Alexei Ekimov [ 4 ] in a glass matrix and by Louis E. Brus in colloidal solutions.
Quantum Cryptology
“Neutrinos obey nature’s speed limit, according to new results from an Italian experiment. The finding, posted to the preprint server arXiv.org, contradicts a rival claim that neutrinos could travel faster than the speed of light. ‘Our results are in agreement with what Einstein would like to have,’ says Carlo Rubbia, the spokesperson for ICARUS and a Nobel prizewinning physicist at CERN. Neutrinos measured by the experiment arrived within just 4 nanoseconds of the time that light travelling through a vacuum would take to cover the distance, well within the experimental margin of error.” “Einstein said that there was no way quantum mechanics could include both entanglement and the belief that nothing could travel faster than the speed of light. If causing a change to one particle instantly caused a change in the other, how could it do so without violating such a basic principle?
the observer effect
Deepak Chopra: Michio Kaku Interview By Deepak Chopra
Michio Kaku interview on Deepak Chopra Wellness Radio-Sirius XM September 19, 2009 Deepak Chopra: My very special guest today is Dr. Michio Kaku and Dr.
Quantum confinement
What the Bleep Do We Know!? | Watch Free Documentary Online
This hard-to-describe movie, which combines talking-head documentary footage with a fictional narrative, attempts to explain quantum physics in terms most audiences can understand. The extent to which it succeeds will largely be the extent to which a viewer grasps the complex theories being addressed in those terms. Does matter exist?
Quantum Entanglement
Back From the Future | Subatomic Particles | DISCOVER Magazine
Also see the other articles in this issue's special Beyond Einstein section: Is the Search for Immutable Laws of Nature a Wild-Goose Chase and The Mystery of the Rocketing Particles That Shouldn't Exist . Jeff Tollaksen may well believe he was destined to be here at this point in time. We’re on a boat in the Atlantic, and it’s not a pleasant trip. The torrential rain obscures the otherwise majestic backdrop of the volcanic Azorean islands, and the choppy waters are causing the boat to lurch.
Quantum mechanics (QM - also known as quantum physics , or quantum theory ) is a branch of physics dealing with physical phenomena where the action is on the order of the Planck constant . Quantum mechanics departs from classical mechanics primarily at the quantum realm of atomic and subatomic length scales. QM provides a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter . In advanced topics of quantum mechanics, some of these behaviors are macroscopic and only emerge at extreme (i.e., very low or very high) energies or temperatures . The name quantum mechanics derives from the observation that some physical quantities can change only in discrete amounts (Latin quanta ), and not in a continuous ( cf. analog ) way.
Quantum mechanics - Wikipedia, the free encyclopedia
