Quantum Theory

Muon-to-Electron Neutrino Oscillations have been observed twice. What causes NO ? If, in practice as opposed to theory, every Quantum system has some spread in Energy [math]\Delta E[/math]; and if such spreads, or "line widths", were wider than the spacings between the "lines" themselves, [math]\Delta E > E_{\nu_{\tau}}-E_{\nu_e}[/math]; then would that explain NO ?? To wit, in practice, it is impossible to produce a "pure mono-chromatic, mono-energetic, mono-flavor" neutrino beam, so that every neutrino manufactured, is inherently some super-position, of the three ever-so-closely-energy-spaced neutrino "flavor" states ??

http://www.redorbit.com/news/technology/1265211/electrons_ride_light_waves/ I can see one possibility of how I see the image I'm seeing, but I don't get how an electron "rides" a photon or even what that really means.

Light , does it exist or does it first need to be rubbed against the dark matter, which then also has to exist around us all the time. Why? In a solid, dark room our eyes do not detect light unless we create some kind of "rubbing". for example we light a match, we ignite a torch. If the room was really empty, then the photons would not be visible at all. What we call "daylight" is nothing else then "the big match called our sun" and other "beamers" all around us, rubbing against the dark matter. Travelling fast through the dark matter is possible but only for small high energy particles , bigger masses can not reach the speed of light due to the e=mc2 limitatio…

Prof. Aaron O'Connell: Making sense of a visible quantum object (8 minute video) COMMENT: I offer, that Prof. O'Connell's "Quantum Diving Board" enters a TRIPLE super-position state, in which it is, firstly, partially stationary ("still in the center"); secondly, partially oscillating up-and-down ("bouncing back-and-forth"); thirdly, partially oscillating down-and-up ("bouncing forth-and-back"). Classically, these are the three "modes" of oscillation available to the system -- none; in-phase; anti-phase. Note, too, that the "Diving Board" remains connected, back at its base, to a completely Classical, meso-to-macro-scopic scale, structure (the "pool" part,…

Are there any known fluids that generate their own magnetic field?

Hi I'm doing classes in both physics and chemistry and i've got a bit of a confusion. During Beta decay of a radioisotope, the electron is ejected from the nucleus. Why doesn't it attract to the protons, according to magnetic laws. Any help please

When subatomic particles are discussed what exactly are we talking about ? ( as I understand it things like protons/neutrons (nucleus), electrons, quarks, gluons ( hadrons ?) etc are all considered to be subatomic particles ?). According to the einstein equation (E=MC^2) am I right in assuming that an atom is pure energy ( over simplistic ? ) and it's mass can be fully converted to energy ( 100% efficiently or possibly not [ other products of light, heat, sound, radiation etc ]) ? So are subatomic particles like little packets of energy or if not do we know what they are ? Would it be valid to consider all mass from micro to macro level as "mass energy"…

If scientists managed to make a solid block of antimatter that they would be able to visually see in front of them, would they actually be able to see it if light were shown upon its surface and reflected? I=Or is the light from anti-matter different somehow. Maybe we can't answer it right now because we don't have a visible clump of entire anti-matter atoms...

Classical mechanics says anti-matter is matter bur the electrons are orbiting the other way around the nucleus, which we now know with quantum mechanics that an electron doesn't actually physically orbit the nucleus, as far as we know, and since the direction of the spin of an electron doesn't change its charge either, what causes the creation of anti matter quantum mechanically, and what causes the charges to reverse?

If I have a helium nucleus, will electrons be closer to it than in a hydrogen nucleus due to the greater amount of positive charge force attracting an individual electron? And if the radii vary, what are the precise radii or at least what is the formula with a given atomic number? Also about hybrid orbitals, how do I figure out their dimensions/radii? I mean there's geometry, but I mean besides that, like how I could figure out the shape and dimensions of a hybrid orbital between two Zinc atoms.

How can baryonic dark matter exist? Dark matter is nonbaryonic. Shouldn't baryonic dark matter be on the visible ("normal") matter side of the ledger thus subjected to a name change? Or at the very least be treated as something different than dark matter or visible matter. The name is driving me nuts!

Im not expertise on this field, however I do concern about the sustainability on our earth. and finding a renewable energy base on quantum physics seems inspire me alot. I know there is a new form of energy call vacuum energy and it exist everywhere, everytime, but why we can't exploit this energy? according to E=mc2, when two virtual particles collide, they should just like matter-antimatter collide, which ends up as gammaway. According wikipedia, "the vacuum energy in a cubic centimeter of free space has been estimated to be 10−15Joules." http://en.wikipedia.org/wiki/Vacuum_energy which mean if we can build something big enough, such as a d…

How does it have zero thermal energy if its not at absolute zero? It's not at absolute zero, just above it, so it should still have thermal energy right? The atoms should still be moving somewhat. Also, if all the atoms did have the same value of thermal energy which was 0, they should all be in the same lowest energy state, so why isn't it displaying properties of Bose-Einstein condensation or really any quantum mechanical properties? Also instead of getting warmer, it just rises, but couldn't an explanation for that be a simple property of phase change? Super-fluid is as close to a solid that helium will get, but if you can remember, when doing things like melting …

So, say we have a system set up taking advantage of the casimir effect but instead of two plates, there are dozens or even hundreds. If the plates were fixed on the ends, would the casimir effect result in compression of the plates? If so, could these plates be piezoelectric and thus be used for generating electricity? I can't seem to find the losses here, but I also don't know much about the physics involved. I know that the plates would attract or repel in the absence of an external field, but does it still work in the presence of a field(such as the one created by the current produced by the piezoelectric plates)? Would the plates reach some sort of equilibrium whe…

I recently was told that given the known velocity of a particle and the position of every particle at a given time, it could be predicted. However, my father disagrees and says that you cannot find the location and the elocity at once and therefore a particle cannot be predicted. Unfortunately, I don't have any evidence or theories to back myself up. Any help?

I registered only to post this question as it's bothering me since yesterday. So.. I was watching Discovery Science and saw in a show that scientists are trying to send info in the past. A guy was saying that when this will be possible, they will be able to send messages back in time and prevent many major events that happened in history. Now this is where I don't understand it anymore. How come we didn't receive any message from the future? Our present and our past is the past of their future. Hope you understand what I mean. ( English not my natural language ) So how come all the major events still happened if "we" from the future didn't send any information bac…

What happens, to the Energy levels, of 1D potentials, when they are warped ? Do the Energies increase, or decrease ?

Physicst say according to the rules of quantum physics, sub atomic particles have duality as "particle and waves" . I dont understand this. We all know the sub atomic particles are the basic matter of an atom and all the solid materials including you and me are made up of atoms. Then what is reality? What we are seeing in every day life is just a pattern of waves? is there nothing solid?

If Helium atoms are normally about [math]1 \AA[/math] across, how can their wave functions "puff up" roughly ten-thousand times, to about [math]1 \mu m[/math] ?? What about the Hydrogenic solutions, to the SWE? What happened to atoms being bound states, composed of many particles, of sizes comparable to the Bohr radius ?? If atoms can "balloon" up like that, why don't they do so all the time ??

This is my 1st post. im a student i wanted to know How Is Quantum Theory Different From Wave Theory Of Light ? How Does It Justify Black Body Radiation / Line Spectrum Of h2

Is there a discrete number of photons possible and if not, what determines the range of discreet photons possible in a given system?

I have been wondering from my 3 dimensional perspective how the universe "measures" movement. When i see a sprite on a monitor or television dance across the screen i know that it's progression from one side of the screen (viewport) to the other is measured in pixels and those pixels in reality for example are measured in millimetres. This type of movement can be described in terms of block measurements because we can measure each pixels dimensions. In reality when i wiggle my finger for example; does my finger pass an infinite amount of "pixels" one way before i decide to stop it and complete the wiggle in the opposite direction? Is a measurement of movement …

Here are some lectures I found on Youtube. They cover the basic concepts of electronic structure of molecules. This will be of interest to anyone interested in physical chemistry/molecular physics. The first lecture covers the Born-Oppenheimer Approximation and he later moves on to Ab Initio, Hartree-Fock, and DFT methods. Prerequisite knowledge includes, a basic QM or Q-physical chem course, and some differential equations/multivariable calculus. I find the lectures quite easy to understand considering the material at hand. I imagine this course is the equivalent of a first year grad level quantum chemistry course. The guy teaching these lectu…

my understanding is that vacuum energy is the particle ground state energy 1) why is this field a constant, static field? 2) how is the "absolute" energy density derived? 3) Why is this field considered as negative energy (negative pressure) in cosmology? I assume this has to do with the convention of the direction of force being from potential energy (PE) and vacuum energy cannot decrease. 4) Other than by assumption, how is vacuum energy related to dark energy? 5) Rather than cause a "real" expansion of space why not creation / annihilation of virtual gravitons and subsequent virtual space? Not sure where to put this - not even sure if the que…

Ok, but both hydrogen and calcium emit at @480nm; but whereas calcium will also emit at 440-450, hydrogen won't emit until under 440. What causes the hydrogen to hold out for more energy (or am I understanding the spectra wrong?)?