Recent content by Sillyboy

And I cannot understand the relationship between the periodicity(periodic boundary or antiperiodic boundary) and the parity!

I thought Nielson's would help you! http://www.qinfo.org/people/nielsen/blog/archive/notes/fermions_and_jordan_wigner.pdf Yes, it is just an idea, you should calculate it by youself!

Thank you very much~ Then what about the exchange programmes in summer between universities, how could they obtain visa?

Thus, I need a way out~

please~

Hilo, friends! I am a junior student in China. I am getting to learn some about quantum information science (QIS). Next summer, I am planning to go to USA for summer research experience. But there is something wrong with the date. My summer vocation comes at the end of June exactly. However...

Ya, I think your intepretation is amazing. You totally explain LZ's problem and you present me a clear view at the double-slit experiment. I think I have a better understanding of this. Thank you, friend!

No, The black body radiation should be explained by the harmonious oscillation of the atoms. Please refer to Planck's explanation, you should think it is so, not the eclctronic motion.

I think the harmonious_oscillator model can explain this phenomenon well. And frequency of oscillation is not the same!

Really, I think you explanation is weird. At least I cannot accept it. I think HUP is a principle which has nothing to do with measruement. It tells us that the world is uncertain. Maybe my answer is wrong. If so, please point them out!

Principles of Quantum Mechanics by R.Shankar says, it takes a long time to convert it. But this book is not available at hand. So I cannot give the exact value. And I think Matterwave's explanation is good.

Hello, I am interested in it if you could explain it in terms of Dirac notion. I am not clear about your present explanation. I think your "decoherence" could make my comprehension about this basic principle more clear!

how?

For just a single particle, its state also behaves as a wave. That is to say, a single particle also is a wave. just emsamble of particles behave stasitically. Maybe we could comprehend this this way. for a coin, |state> = 0.5|up>+0.5|down>. But once the measurement happens, its states either...

My comprehension is that, no matter how preicise the measurement is, we connot get the exact value of position and momentum simutaniously. From the formula delta_x*delta_p>=p_bar/2, if we measure one of them(say x), which is that delta_x=0. Then delta_p=infinite. We can measure them...