Recent content by tomasko789

I'm not sure if i get your point right, but I'd have one remark. It is for sure an interesting phylosophical question what in fact determinism is. However, talking about quantum mechanics we should rather consider the inherent determinism or randomness of the theory itself and not going so far...

Maybe it is a little bit offtopic, cause it is far from the philosophical dispute on what is randomness and determinism. However, my view of this problem is quite simple. As we look at the quantum theory, it is deterministic in all its points. Given an initial state of a closed system, we can...

At the first, thank you very much for your reply. Anyway, it is still a bit mysterious for me. I'll try to explain my point: Imagine, you have a single mode oscillator, a cavity, where only one mode of light can exist. If you couple this oscillator to a termal reservoir of certain...

What I'm going to tell you is in a contradiction with your question, cause you say, you only have realspace wavefunction. However, i find it very instrumental to imagine it in this way: Take the realspace wavefunction. Do its Fourier transform. You obtain a k-space wavefunction. In this...

So we have: rho1 = 1/2*(|00>+|11>)(<00|+<11|)= shorter notation =1/2*|00+11><00+11| rho2 = 1/2*(|00><00| + |11><11|) Consider observable: A = 1/2*|00+11><00+11| -1/2*|00-11><00-11| Tr(A*rho1) = 1/2 Tr(A*rho2) = 0 => we get different mean values, for more measurements we can...

First of all, it's not said in your question, but if we are talking about absorption, stimulated emission, and population of atoms in ground and excited state, we implicitly presume, that the light is passing through a "resonant" environment - i.e. the frequency of the light is approximately the...

Hi, I just passed a course of a quantum coherence theory (or quantum optics). However, during the course i found more questions rather than answers. One particular: Imagine there's a white light coming from the sun. What is the coherence length of this light, according to the quantum...

Hi, I do believe, that the real collapse of the function happens in the detector. If you assume, you'd split the light in a polarizer, and then you would join the two channels again, I'm quite sure you'd see an interference pattern (u'd have to rotate the two polarisations to the same...