Macrorealism from entropic Leggett-Garg inequalities

dc.contributor.author	Usha Devi, A.R.
dc.contributor.author	Karhik, H.S.
dc.contributor.author	Sudha
dc.contributor.author	Rajagopal, A.K.
dc.date.accessioned	2013-09-12T07:12:37Z
dc.date.available	2013-09-12T07:12:37Z
dc.date.issued	2013-05
dc.description	Open Access	en
dc.description.abstract	We formulate entropic Leggett-Garg inequalities, which place constraints on the statistical outcomes of temporal correlations of observables. The information theoretic inequalities are satisfied if macrorealism holds. We show that the quantum statistics underlying correlations between time-separated spin component of a quantum rotor mimics that of spin correlations in two spatially separated spin-s particles sharing a state of zero total spin. This brings forth the violation of the entropic Leggett-Garg inequality by a rotating quantum spin-s system in a similar manner as does the entropic Bell inequality [ S. L. Braunstein and C. M. Caves Phys. Rev. Lett. 61 662 (1988)] by a pair of spin-s particles forming a composite spin singlet state.	en
dc.identifier.citation	Physical Review A, 2013, Vol.87, p052103	en
dc.identifier.issn	1094-1622 (Online)
dc.identifier.issn	1050-2947
dc.identifier.uri	http://hdl.handle.net/2289/5790
dc.language.iso	en	en
dc.publisher	American Physical Society	en
dc.relation.uri	http://arxiv.org/abs/1208.4491	en
dc.relation.uri	http://dx.doi.org/10.1103/PhysRevA.87.052103	en
dc.rights	2013 American Physical Society	en
dc.title	Macrorealism from entropic Leggett-Garg inequalities	en
dc.type	Article	en

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