Mangesh posted an Question
June 16, 2020 • 22:05 pm 30 points
  • CSIR NET
  • Physical Sciences

Quantum mechanics

please explain me how to write psi after and how to calculate Ci ,please explain marked portion

3 Answer(s) Answer Now
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  • comment-profile-img>
    Chandra prakash

    and after mesurememnt we write c bcoz after measurement result is superposition of all wave function..

  • comment-profile-img>
    Chandra prakash best-answer

    one more think about mesuremnt.... When the position is measured on this state, the wavefunction collapses to a position eigenstate which is a Dirac-delta function δ(x−a) spiked about x=a. The measurement of position on any wavefunction collapses the state a position eigenstate. This is the case immediately after the measurement

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    thanx

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    wc dear

  • comment-profile-img>
    Dhairya sharma best-answer

    And meaning of degenerate value is that after every measurement we get only one value corresponding to one one measurement. we won't get two results from single measurement.

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    this is sense of the non degenerate value. Like we are operating position operator to any wave function then we get one value of position at a time particle can not have two value at a time

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    this is your second doubt

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    thanks

  • comment-profile-img>
    Dhairya sharma

    see also

    cropped4745555177303040722.jpg
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    what is completeness thm

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    dear completeness theorem states that ketbra of some fxn shold equal to 1

  • comment-profile-img>
    Dhairya sharma

    dear.... meaning thereby is to say that before measurements are states are superposition of all the states but when we measure it.....it get proper state.

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    not the combination of other states

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    thanks

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    welcome dear

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    👍👍

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