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Photon state

  1. Mar 6, 2014 #1
    I have few questions to ask:

    1. Can a photon state be written as
    |ψ> = [cos(θ) sin(θ) exp(i*ø)] in column vector form

    2. When a general photon state|ψ> = [cos(θ) sin(θ) exp(i*ø)] passes through a linear polarizer [1 0; 0 0] we get [cos(θ) 0] at the output but not [1 0] as is usually found in text book

    thanks
     
  2. jcsd
  3. Mar 9, 2014 #2

    Simon Bridge

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    Presumably you mean to describe only the polarization state of the photon.
    You should realize that x and y directions are meaningless without a polarizer.
    You appear to be trying to resolve the classical and quantum descriptions of polarization - this should be done via the correspondence principle.

    See:
    http://mathpages.com/rr/s9-04/9-04.htm
    ... you need to scroll right down to the bottom to get to the QM version of linear and circularly polarized light.
     
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