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Wavelength of matter wave at v=0

  1. Apr 28, 2015 #1
    if velocity of a huge particle is made zero what will happen?? will the particle spread out into the universe aka complete delocalization??
    Last edited: Apr 28, 2015
  2. jcsd
  3. Apr 28, 2015 #2


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    Staff: Mentor

    You cannot make it exactly zero for this reason.
  4. Apr 28, 2015 #3


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    Does this fall under the uncertainty principle?
  5. Apr 28, 2015 #4


    Staff: Mentor

    I think its more that states with a definite momentum have a wave-function that that's not normalisable ie doesnt fall off at infinity hence is not physically realizable.

    Although zero momentum poses the added complication its at rest ie stationary so it has both known momentum and position which is not possible via the uncertainty principle.

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