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- Thread starter KFC
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- #1

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- #2

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Check for instance this article on the number-phase Wigner function: http://journals.aps.org/pra/abstract/10.1103/PhysRevA.52.3474 , I will try to get a copy.

Also you can try:

- the webpage of Lvovsky's group contains some of their papers on experiments releated to Fock states: http://people.ucalgary.ca/~lvov/Alex-pub.html

- If you have access to some library look for the book

- #3

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I managed to retrieve a copy of the PhyRevA article *<<Moderator note: Deleted content>>*.

PS: Can I upload the copy here on forum as attachment?

*<<Moderator note: Parts of this message has been deleted.>>*

PS: Can I upload the copy here on forum as attachment?

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- #4

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I managed to retrieve a copy of the PhyRevA article.

PS: Can I upload the copy here on forum as attachement?

No, you are

Thread re-opened, but please abide by the copyright laws.

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- #5

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I don't know where you are getting this. A Fock state, also known as a number state, is just a state where the number of excitations is definite. For example a Fock state might something like

"3 photons of momentum ## k_1## and seven of momentum ## k_2##".

Something that is not a Fock state would be superposition of number states, such as

"1 photon with momentum ##k##, prob. amplitude ##a_1##" + "2 photons with momentum ##k##, prob. amplitude ##a_2##". ##a_1\neq 0 ,\,a_2 \neq 0 ##

This would not be a Fock state (although it still is in Fock space).

As for the phase being unpredictable, this can be seen by finding the expectation of the field operators in a Fock state. You will find that it is zero - it doesn't represent a wave with a particular phase, so when you find the average value of the field, it comes out to be zero. For a state more closely represents a classical wave, see a coherent state (which is not a Fock state - it contains all possible number states of one particular momentum in a superposition).

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