Nonclassicality and the concept of local constraints on the photon number distribution

Simon, R and Selvadoray, Mary and Arvind, * and Mukunda, N (1997) Nonclassicality and the concept of local constraints on the photon number distribution. [Preprint]

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Abstract

We exploit results from the classical Stieltjes moment problem to bring out the totality of all the information regarding phase insensitive nonclassicality of a state as captured by the photon number distribution p_n. Central to our approach is the realization that n !p_n constitutes the sequence of moments of a (quasi) probability distribution, notwithstanding the fact that p_n can by itself be regarded as a probability distribution. This leads to classicality restrictions on p_n that are local in n involving p_n's for only a small number of consecutive n's, enabling a critical examination of the conjecture that oscillation in p_n is a signature of nonclassicality.

Item Type:	Preprint
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies Division of Physical & Mathematical Sciences > Physics
Date Deposited:	13 Aug 2004
Last Modified:	19 Sep 2010 04:13
URI:	http://eprints.iisc.ernet.in/id/eprint/870

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