Hello! I'm new to the forum and quite interested in the wealth of information and exchanges that seem to go on here. I found my way here a couple of times before looking for some information on other experiments, but was too lazy to register, lol. At any rate my query is related to the Aharonov–Bohm Effect. Now before I ask it specifically, know that my interest stems from a purely recreational/mental curiosity motive and nothing else - so thanks for your patience... Basically, I've just discovered David Bohm and I can't get enough of him! So, as a result, I've been reading about his various experiments, contributions to physics, theories, worldview philosophies, etc. What I'm curious about is what (if any) relationship there is between the results of said experiment/effect and a) the concept of nonlocality, b) the hidden variable concept (which I *somewhat* understand) and c)real world applications I found a couple of links from some universities here: http://msc.phys.rug.nl/quantummechanics/ab.htm [Broken] http://www.physics.harvard.edu/~dtlarson/tutorial05/lecture6.pdf [Broken] The former does a pretty good job of giving me some visual, rudimentary understanding of the principle concept(s) and experiment, the latter I find rather boring and tedious to understand. But I am hungry to learn more. So if someone could shed some light in a paint-by-numbers kind of way, that would really rock... After perusing the above, I happened upon a wiki on the material and I'd be delighted to have some clarification on the following: "Nano rings were created by accident during the manufacture of quantum dots 10-100nm in size. The process sometimes cause the material to splash when making deposits onto a surface leaving a defective dot that becomes a doughnut-shaped ring, an Aharonov–Bohm nano ring. These nano rings have been a source of study and are the right size for enclosing an exciton. The right size does not allow them to hold an exciton for long. But when a combination of magnetic and electric fields is applied, the electric field can tuned to freeze an exciton in place or let it collapse and re-emit a photon at a later time. This is the pairing of an electron that has been kicked into a higher state by a photon, with a hole it leaves within the shell around the nucleus. When an electron’s high energy state decays again, it is drawn back to the hole it is linked to and a photon is once again emitted. By holding an exciton in place one could delay the reemitting of a photon and effectively slow or even "freeze" light. While varying exotic states of matter have been used to slow the progress of light, the University of Warwick reported in March of 2009 that it was successful for the first time to completely freeze light by releasing individual photons at will Application of these rings used as light capacitors or buffers includes photonic computing and communications technology." http://en.wikipedia.org/wiki/Aharonov-Bohm_effect So what's going on here? Are they saying that basically, during an experiment used to demonstrate the Aharonov-Bohm Effect, something's happening with the interaction between electric and magnetic fields which does *something* to excitons (need to look that up...) and photons whereby light is "frozen", held still, etc? Then, there's some discussion about how the process of "capturing", slowing, etc the light, photons, etc could well pave the way for photonic computing. So, are they basically saying that the nano-rings used/discovered as a result of the A-B Effect could be used as a central component for what - this "freezing" process? I know this is a rather lengthy set of questions, but I'd be very appreciative for anyone's insight here. Lastly, I've seen some great links on Youtube about David Bohm; I've also Wishlist-ed several of the books that seem to be popular about him. Are there any other movies, documentaries, online videos, etc about him or with him being interviewed personally one could point me to? Thanks in advance!