i am studying atom localisation suggest me some material to start.
Googling atom localisation doesn't help me trying to find out what you mean. Could you elaborate ?
i mean atom localiastion using cpt
What does cpt mean for you? For me, it means "charge conjugation, parity, time reversal" as in "CPT symmetry":
I don't see any connection with this and atom localization.
I'd guess the OP means coherent population trapping, in which case searching this would likely be a good place to start a literature review.
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