Recent content by Sillyboy

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    Jordan wigner transform and periodic boundary condition

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

    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!
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    Physics About physics summer research for undergraduates

    Thank you very much~ Then what about the exchange programmes in summer between universities, how could they obtain visa?
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    Physics About physics summer research for undergraduates

    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...
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    Electron two slit experiment with gradual collapse ?

    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!
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    Exploring the Mystery of Blackbody Radiation: A Quantum Conundrum

    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.
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    Exploring the Mystery of Blackbody Radiation: A Quantum Conundrum

    I think the harmonious_oscillator model can explain this phenomenon well. And frequecy of oscillation is not the same!
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    Understanding the Uncertainty Principle and Its Effects on Atomic Particles

    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!
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    When the electron prob wave spreads what happens to the electron?

    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.
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    Electron two slit experiment with gradual collapse ?

    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!
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    Two-slit experiment and The Truth

    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...
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    Questions about Heisenberg's Uncertainty Principle & Vacuum Energy

    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...
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