Thought experiment good in chain store with CD-Rs distributed (12,3)

I believe the answer is:

schrodingers cat

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'thought experiment' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'good in chain store with cd-rs distributed' is the wordplay.
'good' becomes 'g' (abbreviation).
'in' is an insertion indicator.
'with' is a charade indicator (letters next to each other).
'distributed' indicates an anagram.
'chain'+'store'+'cd'+'rs'='chainstorecdrs'
'chainstorecdrs' anagrammed gives 'schrodinerscat'.
'g' inserted within 'schrodinerscat' is 'SCHRODINGERS CAT'.

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I've seen this clue in The Times.

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