what is meant by quantum?
145418
The word quamtum is derived from quanta which means packets.This is the theory that radiation or conduction or radiation of light or energy takes place in the form of quanta.
398019
Quantum electrodymanics is the relativistic quantum theory of electromagnetism.  it was developed by Richard Feynman, Julian Schwinger, and Sin-Itiro Tomonaga in the 1940's and they shared a Nobel prize in 1965 for its development. It is, arguably, the most precisely verified scientific theory yet devised, making predictions (of atomic energy levels and of the magnetic moment of the electron - R. Van Dyck, Jr., P. Schwinberg, and H. Dehmelt, Phys Rev. Lett. 59, 26 (1987); P. Milonni, p. 108, The Quantum Vacuum\nAcademic Press, San Diego, CA, 1994) that have been experimentally validated to 1 part in 10^12!  \n\n1 part in 10^12 is about the ratio of the diameter of a large bacterial cell to the diameter of the Earth.
122784
yes... its a photon (a particle that makes up lights according to quantum physics)
801633
Hi, \n\nThat's too much like real work, but think about it like breaking pool balls in classical, and wave interference with quantum. \n\nHope that helps, \nMatt
1159743
Quantum superposition suggests it would exist in multiple places but in an experiment the heisenberg uncertainty means it can only ever be measured in one place (observing it causes its wavefunction to callapse to a single location).
101623
What does it mean to be "true"? The quantum theory (I suppose that's what you're asking about) can explain a lot of physical experiments, so, up to a certain extent, it has been proven true. It is also the truest physical theory for small scales up to today.\nScience isn't about finding absolute truths, it's about providing a description of reality that suits your needs. Take newton's gravity laws for example: while proven false in absolute by einstein's relativity, they are still really useful and tought in many places.\nOf course the goal is to one day provide a theory (a description of reality, not "a guess") that explains everything, but for now that's still a dream.
475865
It's quantum electro dynamics - QED for short
34932
how about quantum information theory?  this encompasses some of the cool research that's going on currently, including quantum entanglement, teleportation and the 'quantum parallelism' that you get by using quantum bits in a superposition of states.  \n\nhttp://www.imaph.tu-bs.de/qi/concepts.html\nhttp://www.qubit.org/index.html\nhttp://plato.stanford.edu/entries/qt-entangle/\n\ngood luck!
240812
Both are theories that come from the human mind.\n\n"Quantum physics" is a theory that has been developed by people through observation, reason, and experiment.\n\n"God" is another theory that has been developed by people via means which I am not personally familiar with.\n\nTheories are ideas which are proposed, but not necessarilly true. They might or might not be believed by the people who propose them.\n\nA belief is something which is thought to be true, but not known to be true, by the believer.
729595
This is almost a semantic question - what do we mean by "digital"\n\nBut the answer would have to be digital since photons are "individual" quanta. Molecules (in your eye) absorb one quantum of energy at a time; send one nerve impulse at a time etc.\n\nOn the other hand, quanta of differing wavelengths seem to excite the same molecules leading to a rather analog interpretation of color!
645069
Two words - Quantum Computers\nIBM has one and so do many prestigous hi-tech companies\nThey are what the super-computer once was\nThey compute information in 0,1 1,0 and a super-position (I have no clue what this means) of both. Check it out for yourself. Do a google and see the amazing power of the QUANTUM COMPUTER!!!! (echo...echo...echo...)
484232
According to quantum mechanics, an object exists for you only when you are aware of its existence. Otherwise it is a probablitly.\nI will give an example: If you look away from your computer to say a TV, then the computer object has ceased to exist and TV has started existing. But the you who is looking at TV is different from the previous you who was looking at the computer, because when the computer ceased to exist, so did you and so did the universe frame containing you, computer and the elements like light that made looking at computer possible. Now you, TV and the process of looking at TV is happening in a different universe.\nNow if you again turn your head to look towards computer, you will cease to exist with the TV universe and enter a third universe identical to the first universe. But how do you see the same computer if you are entering the new universe, then this is one of the less known uses of our memory, that is being used by the universe to make fools of us.
264708
Science : May be uncertainty principle in quantum effect. \nMaths : Probability theory
63744
B only seems impossible because you're looking at it from a small, everyday perspective.  Read a book on quantum phenomenon and you'll discover that particles literally appear out of no where everyday, and we take this as completely normal.  The Universe and Everything is far more sophisticated than you're giving it credit for.
827395
“…the possibility of any occurrence happening to anything at any time…” I think you’re referring to the many-worlds interpretation of quantum mechanics but you’re putting the popular “new-age” spin on it. Quantum theory outlines the exchange of energy between the four fundamental forces and explains the interactions of these quanta with atomic and subatomic particles. Certain counterintuitive observations from the quantum world, or "quantum paradoxes," can be removed by invoking the many-worlds interpretation but it is still just an interpretation and it doesn’t really allow anything to happen anywhere at anytime. If you’d like a great introduction to this, try reading The Cosmic Banditos by A. C. Weisbecker.\n\nScientific theories will never capture God, they explain the phenomenological world not the spirit; quantum physics is science not theology. If you look for science in God, you’re looking in the wrong place. If you look for God in science, you’ll miss the whole thing.
961835
Quantum gravity is the field of theoretical physics attempting to unify quantum mechanics, which describes three of the fundamental forces of nature, with general relativity, the theory of the fourth fundamental force: gravity. The ultimate goal of some is a unified framework for all fundamental forces—a "theory of everything".\n\nclick here:http://en.wikipedia.org/wiki/Quantum_gravity#Overview
1157167
Quantum Mechanics is the Physics behind Physics, it is Philosophy with Scientifical evidence, this goes beyond Logic and reasoning, and it only goes to show that the most incomprehendible thing about reality,(really is after all) the fact that it is comprehendible!!! I have yet to see the movie but the guy who said he and his chick tried to count how many errors were there within the first 15 minuites of the movie but couldn"t cause there were too many,.. yeah well,... He"s a fool if he disregards all things just as easily as he did this, I mean he counted the errors for example with our common (estimate his knowledge of this topic to a high level by the way, I am willing to assume he knows what he is talking about and what he is talking about is Physics, you know Science science,... I love that subject too,,,, but Quantum Mechanics is a modern Science, even more so and 10 fold than the one used for our latest and most newest forms of technology! \n  Ok please do me a favor and research when this subject first made it"s debut, and more importantly Who helped develop this Topic, and I am sure you will be surprised, For now I will give you one name, and it is one that by the way is not the father of this subject, but Albert Einstein himself, was there when they were cooking this Phenonmenal study up, it was a handfull, I mean a "handfull"! of the best most respectable minds of that time and we should be proud, ........ of our era,.......it brought me peace, when thinking about the Pi equation,...... it doesn"t gibe you an explanation Quantum Mechanics, it hardly gives you an understanding, but you do or can come to terms with the fact that life is not an answer it is a question, perhaps............