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I Coherent states

  1. Jan 14, 2019 #1
    Cohererent states are defined as eigenstates of the annihilation operator. Never the creation operator is referred to.

    Is this just a convention or is more behind? What is the essential difference between eigenstates of the annihilation- versus the creation operator?

    Thank you very much in advance!
     
  2. jcsd
  3. Jan 14, 2019 #2

    Demystifier

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    There are no eigenstates of the creation operator. The asymmetry between creation and annihilation operators stems from the fact that the ordered basis ##\{|0\rangle, |1\rangle, |2\rangle,\ldots\}## has the first element but not last element.
     
  4. Jan 14, 2019 #3

    PeroK

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    Existence!
     
  5. Jan 14, 2019 #4
    Got it. Thank you very much.
     
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