Recent content by Mr_Physicist

In experiments on the Casimir force, the gravitational attractions experienced by the these very small mirrors is very small, orders of magnitude too small to account for the attraction.

Photons are mostly free of decoherence because they do not interact with each other directly and we have many materials in which photons interact minimally with their environment, like glass. This is in contrast to most other particles, such as electrons. In a vacuum far away from any other...

There is a theorem on this, but I can't remember what its called. The answer, to the best of my knowledge, is no. Picture it in bulk optics: if you have two laser beams, you can use a beam splitter to combine them, but you will only ever get half of each laser beam in each port. It is...

That is a very general question, can you be more specific? In optics, classical correlations can be discussed in the context of coherence theory, such as in a laser beam. In quantum, particles are often said to have non-classical correlations when they are entangled. But meaning of...

I second Zarqon's explanation. I would also like to point out that while decoherence is a major problem in many experiments in quantum mechanics (such as those involving electrons or ion traps), its is not nearly such an issue in quantum optics. Entangled photon pairs have very few problems...

My advice would be to avoid textbooks for now. The subjects you listed are fascinating, but very advanced. The math skills alone are years beyond Jr. High; some of your subjects are beyond an undergraduate degree. If you start with textbooks that you can understand, you'll be burnt out while...

I will admit that an author of a book being published in peer reviewed journals is not a guarantee that they are not nuts, but an extensive resume of published peer reviewed works, especially papers in major journals like Science, Nature and Phys Rev, is a good sign that the author is an expert...

The best way to debunk these theories is to know what you are talking about. Learn QM from textbooks and books written by people who publish peer reviewed work in respected journals. These sources will teach you the foundations of QM without mixing it up with mysticism. Then when people...

Any interpretation of quantum mechanics must be consistent with experiment. A model or interpretation that only works if you ignore or exclude certain phenomena is not a model or interpretation worth pursuing.

Your error is in the first sentence. Rotating the polarization of photon A does not rotate photon B. Photon A will still be entangled with photon B, but the relationship will be different, i.e. where in the previous case both photons would be found to be in the same polarization state, if you...

If you are reading for fun and inspiration, I would stick to books that are not terribly technical (you will get into that in good time) and will eventually allow you to make connections to what you will learn in class. In particular, I find that a class on quantum mechanics or particle physics...

Rotating the polarization, which includes changing horizontal to vertical or even linear to circular or elliptical, is not a measurement, only a rotation. It will change the state, but entanglement is preserved. If you send one or both photons in an entangled pair (entangled in polarization...

Change? Yes, easily. You can rotate the polarization of a photon with a half or quarter waveplate without otherwise disturbing the photon. Observe? Yes and no. If you have a single (non entangled) photon in an unknown polarization state, you cannot determine its polarization without...

I am going to choose to answer a part of one of your questions, I hope it helps. You could, in theory (as in I don't know if the experiment has been done), entangle a photon and a particle that possesses charge, such as an electron or atom. First, generate two entangled photons through a...

Try looking in "Quantum Computation and Quantum Information" by Nielsen and Chuang. First of all, reversibility is not always required, look at cluster state computation and the one-way quantum computer. My understanding is that for an ideal quantum computation, to take full advantage of all...