Is an atomic electron transition a phase transition?

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  • #2
BvU
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No. It takes place on an atomic scale where there is no concept of 'phase'.
 
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No. It takes place on an atomic scale where there is no concept of 'phase'.
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  • #4
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No. It takes place on an atomic scale where there is no concept of 'phase'.
Is atomic electron transition a nonlinear change?
 
  • #5
vanhees71
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No, quantum theory is a linear theory, particularly the time evolution is described by unitary transformations (of state and observable operators).
 
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No, quantum theory is a linear theory, particularly the time evolution is described by unitary transformations (of state and observable operators).
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