Quantum Theory

hello in need to find T in the follow equation: [math]\delta(\phi-\pi)+k=T\delta(\phi-\pi)[/math] where [math]\phi[/math] is a angular coordinate between([math]-\pi,\pi[/math]) ¿is correct do: [math]\int^{\pi-\epsilon}_{-\pi+\epsilon}\delta(\phi-\pi)d\phi+\int^{\pi-\epsilon}_{-\pi+\epsilon} k=T\int^{\pi-\epsilon}_{-\pi+\epsilon}\delta(\phi-\pi)[/math]??????????? ¿ [math]\delta(\phi-\pi)[/math] with [math]\phi=-\pi+\epsilon[/math] is infinity??????

What causes WF collapse ? In the Schrodinger Wave Equation, wouldn't an imaginary potential cause, at least on its own, WFs to exponentially grow (positive imaginary, same sign as time derivative) or exponentially shrink (negative imaginary, opposite sign from same). Could that, conceivably, have something to do with the "collapse of WFs" during observation & measurement ? For example, using the 3D Dirac Delta Function ∆(x), the imaginary PE field Î(2∆(x)-1) could conceivably cause a wave function to exponentially grow at x, whilst exponentially shrinking away everywhere else (?).

Quantum Entanglement seemingly requires that the soon-to-be entangled particles must first come into causal contact. Now, ever after, those now-entangled particles may drift away, from the "entanglement event" in Space-Time. Yet, since they travel slower than the speed of light, those now-entangled particles will always remain in the (causal) Future Light-Cone of the "entanglement event" in Space-Time. Thus, the world-lines, of all the now-entangled particles, will always be related causally to their mutual "entanglement event". Has it ever been suggested, that the apparent faster-than-light, "non-local" nature of Quantum Entanglement, can be explained, in a 'Retro…

I have recently read about the zero point fluctuations of quantum vacuum and the effect that it has on Casimir plates. However, I don't understand what type of fundamental particle ''carries'' the zero point waves? and also how and why can those particles exit in quantum vacuum (space in its ground state without energy in any form).?

can some 1 explain whhat is it.

I got this idea from the MWI of quantum mechanics. What if in our own universe the future has already been selected. Basically that a future was selected quantum mechanically out of many possible futures that could happen, and the present is a reality that will eventually get to that point? I know this sort of implies deterministic stuff, but only to a certain extent and not totally.

Is there a limit to how fast a photon can travel in relation to another photon? If so, can it be considered that a photon is never at its maximal speed? I'm looking for a layman explanation.

Hi, I've heard that atoms 'flit' in and out -- there, then seemingly gone, then back again... and so on. Is there any truth in this and, if so, what causes this? I've also heard that electrons and quarks are 10 to the -18 meters (or 1E-18? ...I don't know how to get superscript here so I can't use the proper notation). I've also heard that electrons and quarks are one dimensional 'point particles' that have no real size. Which is it or... what is it thought to be. Thanks for any help! Rusty

http://www.physorg.com/news182095224.html Can't say I really understand the article, but I'm a fan of the golden ratio. Apparently some quantum mechanical property resonates at intervals of phi?

... what was the name of the process, when an electron changes its energy level and emmits photons. I did explain the process right, didi I? Even if I didn't, you get the idea... I need information on this phenomenon, I really do. Thanks to those who help!

It is not necessary to consider particles, in order to get the wonderful logic and deductions of QM. Let's say we own a car insurance company. Once a year we take a census of our insured cars out there by issuing an insurance bill. We find out the home base for the cars and trucks, and we know statistically, on average most of these vehicles will spend most of their time parked, somewhere close to their base. However, we do not know if any given car is parked, or where they are, but statistically, if they are not parked they are on average within a certain range of their home base, most of the time. We also know that in locations where there is a higher density of…

Recently in my physics class we have been discussing the relationship between quantum numbers and the electron orbitals of the atom. After trying all day to understand this concept, Id like to post my misconception to the SNF community; Here is my confusion: Electrons arrange themselves in orbitals and sub orbitals, and in the lowest orbital (s), they can be arranged (as in the first few elements): H: 1s^1 (one electron in the 1s subshell) He: 1s^2 (two electrons in the 1s subshell) Li: 1s^2 2s^1 (two electrons in the 1s subshell and one in 2s) this is where i cant seem to understand; how is it that there are now 3 electrons (and many more as the order cont…

1. If heated, will radioactive decay occur quickly? For instance, will the half-life of an element's decay be shortened? (while under enough of a heat increase) 2. Triple-slit experiment. Caused me to wonder....in a double-slit experiment, how far apart can the slits be and the particle-wave still manages to enter through both? 3. If you hovered airborne over a radioactive spot, so that you were hit by the radiated particles, then you exited the area in a few hours, would the particles that hit cause you to give off radiation later? 4. How far does a radiated particle travel in air? i.e. does it get slowed by collisions with air particles? 5. Does a co…

http://news.bbc.co.uk/2/hi/science/nature/8504373.stm What's really going on? This explanation seems pretty bad, IMO.

Hi all Im fifaman and im new 'ere just wanna ask if it's possible to harvest the full range of the em spectrum for electricity and if so, I'm wondering if the gamma radiation put out by a nuclear reactor contains alot of energy as a whole since gamma photons are high energy also would like to ask how it is to be done or for some ideas on what to do thanks alot cheers

Hi! In my plodding efforts to understand some of the weirder aspects of quantum physics there are two questions I’ve been researching that I am not locating answers for… or, lol, perhaps I’m not recognizing the answers. Hopefully someone can help. I've seen videos depicting the ‘Many Worlds Interpretation’ of quantum physics which show T-Rex stomping through your living room because the K2 Event didn’t take place in that parallel universe, you know the hype you see on the MWI. While probably, no one ‘really’ thinks this is what’s happening, the interpretation somehow assumes other universes are right here with us and in our space that we cannot see or interact w…

the attempt frequency of an [math]\alpha[/math] particle to escape the nucleus is the number of times per seconds it collides with the nuclear barrier. Estimate this collision frequency in the tunneling model forthe [math]\alpha[/math] decay of thorium assuming the [math]\alpha[/math] behaves like a true particle inside the nucleus with total energy equal to the observed kinetic energy of decay. the daughter nucleus for this case (radium) has z=88 and a radşus of 9.00 fm. take the overall nuclear barrier 30.0 MeV measured from the bottom of the nuclearwell to the top of the coulomb barrier. my mate asked that problem yo me but i couldnt solve it can u help me ?

the other day i was watching something about drugs on tv. in the programs discussion of marijuana they displayed an image of the THC molecule. upon noticing how (relatively) large the molecule is, i started thinking on a quantum mechanical level; if the THC molecule is so large, then it would take a large amount of energy to ionize or break down. i concluded that this large energy requirement is why it needs to be burnt to create a reaction. this makes sense to me, but my knowledge of chemistry is limited, and this was a rather awkward question to be asking my professors.. can anyone tell me how accurate this conclusion is?

Okay. Hypothetical situation. We observe an electron to be in an up-spin state. If the other electron of the pair is light-years away, it would instantly have a down-spin state....am I correct on that? How can this be possible? The energy (or information or whatever it is) that is in these sub-atomic particles, it has to travel faster than the speed of light. Does this mean that, assuming that dark energy connects everything together in the universe to one entity, the universe at large, which is expanding faster than the speed of light in all directions, does this mean that we are also moving at the speed of light, yet, we cannot tell, because of relativity? …

So the following question came up the other day, that I was trying to do some research to solve, but I couldn't find the answer. It was: "How long does the average infrared photon take to exit the atmosphere." Of course, this depends on the density of green house gasses in the atmosphere, so I am most interested in how long it would take with pre industrial greenhouse gas levels and present day levels. I also understand that when a photon strikes a molecule and causes it to vibrate, the photon ceases to exist, and a new photon is eventually re-emmitted. However, to make this more simple, let's pretend that the photon a molecule absorbes is the same one it emmits. I need t…

I was just wondering that if it turns out that gravity is mediated by the graviton, then wouldnt the graviton be the first true tachyon known. The reason why i say tachyon is through examples where gravity is obviously traveling faster than the speed of light such as in black holes. Just looking for some higher intellects to extrapolate on this.

Suppose I have an antenna transmitting a signal. Around the antenna I have several receiving antennas. Now I vary the energy of the transmitting antenna so that it corresponds to only one photon. If a receiving antenna absorbs the photon, what happens to the electromagnetic wave propagating throughout space in the, say, the oppsite direction?

I may be approaching that layer and wouldn't mind some expert help. I am trying to understand the relativity regarding cavity QED when a gas atom is diffused into the cavity. DiFiore et all proposed the cavity has equivalent acceleration opposite to the local gravitational field back in 2002 but only an inconsequential 10E-14. I beleive cavity confinement however allows heat energy to be redirected onto this vector. Assuming my conjecture or other factor does allow these atoms to reach relativistic veocity, My question is regarding the manner in which these "fast" atoms would manifest from our perspective - just how do these atoms deviate? Obviously linear spatial veloci…

Why is there difference in energy between ortho and para positronium?

Does the Uncertainty principle tell us that one person can only measure a single particle, no matter what area or distance he tries to measure another from? Why doesn't this apply to other people, why can two people both view two different particles?