Recent content by karatemonkey

Thanks for the replies. To RedX, a single output gate is not reversible when it takes two or more inputs. (See the hand wavy definition of a reversible gate I gave :) ) Actually, you have to have the same number of outputs and inputs for it to be reversible. So yes you are correct in what you...

Thanks for the reply. A reversible logic gate essentailly means that if you run an input through the gate and get an output, you can apply that output to the gate and get back the input. The map is one to one, so that is a unitary operation. I'm going to show my ignorance again and what...

If this question has revealed stupidity on my part please let me know, and give me a reference to straighten me out

First sorry, for not getting back sooner. And even more sorry for skming the rest of the thread so fast, got really busy at work. Second, in reference to the above quote, I'm not sure I understand what you are saying. So, let me ask another question to help me understand. Isn't "the rule for...

I'm partial to the Quantum Bayesians. (See work by Christopher Fuchs et al on arxiv.org). I'm not sure I understand it all but, the basic tenets make things like Bell's Theorem much less bizarre. The tenets I am speaking of are use of prior and post probabilities. In general, I like the idea...

Does anyone know if there is a relationship between the requirement in Quantum Computing that logic gates be reversible and the requirement in Quantum Mechanics that observables have to be self-adjoint?

Canoe, thanks for the reply. I don't know if I agree with the notion of an objective reality. I do believe in a consensus on reality.

Canoe thanks for the reply. To connecting causality and non-locality, your reply about connecting the two being non-deterministic is intriguing. Why do you say that? I can see stochastic but not non-deterministic? Maybe this is semantics on my part? In the end, I fear that even talking...

Fredrick thanks for the references. I'll check them out. What is causality I now is a bizarre question but, it's those simple ones that can be a real journey :) The Bayesian are C.A. Fuchs, Carleton Caves, Asher Peres and others. The group is working on a new interpretation of QM. If you want...

Again thanks for all the replys. Does anyone have any references on Quantum Mechanics, Probability and the notion of causality? (Preferably something outside the Copenhagen Interpretation.) Does anyone know if the Quantum Bayesians have touched on the notion of causality yet? I find their...

I appreciate all the responses. And I probably don't understand all of what is being said. I am aware of the open question related to CHSH. My intuition also tells me that there are no hidden variables. Your comment about clocks implies there has to be a notion of a clock and time and have...

I appreciate all the attention given to my question. I am not trying to suggest there are hidden variables. That's where I run run into a problem with my language. What I am grasping at is how to express Bell or CHSH violations. Causality in my mind has to figure somewhere in the framework...

Thank you for your help. I'm still working on getting the concepts clear. I appreciate the help. I have found that the short answer is NO, entanglement doesn't imply causality. I was referred to a paper http://arxiv.org/abs/quant-ph/9904042 that goes to the question of causality and entanglement.

I have been walking around with the notion that "quantum entanglement implies a sort causal relationship due to the states having a shared history". I am now not so sure that this is correct. When I talk about entanglement, I use the argument that the preparation of the entangled state...

Ok, so I got through the photons always have velocity c in any inertial frame part, which includes photons created inside a semi-conductor laser or in some EIT material, I'm now stuck on how to reconcile photon velocity and the speed light slowing in EIT experiments. More specifically, is it...