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http://hdl.handle.net/2289/5790| Title: | Macrorealism from entropic Leggett-Garg inequalities |
| Authors: | Usha Devi, A.R. Karhik, H.S. Sudha Rajagopal, A.K. |
| Issue Date: | May-2013 |
| Publisher: | American Physical Society |
| Citation: | Physical Review A, 2013, Vol.87, p052103 |
| 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. |
| Description: | Open Access |
| URI: | http://hdl.handle.net/2289/5790 |
| ISSN: | 1094-1622 (Online) 1050-2947 |
| Alternative Location: | http://arxiv.org/abs/1208.4491 http://dx.doi.org/10.1103/PhysRevA.87.052103 |
| Copyright: | 2013 American Physical Society |
| Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2013_PhysRevA_87_052103.pdf | Open Access | 141.81 kB | Adobe PDF | View/Open |
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