Laziness of symmetric and separable states

Suma, S. P. and Swarnamala, S. (2017) Laziness of symmetric and separable states. International Journal of Theoretical Physics, 56 (7). pp. 2221-2230. ISSN 1572-9575

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Abstract

An N-partite state is considered lazy, if the entropy rate of one subsystem with respect to time is zero under any coupling to the other subsystems. In this paper, we show that all biaxial or purely second rank tensor polarized systems are lazy. Such a system can be produced in the laboratory by the interaction of a spin-1 nuclei with non-zero quadrupole moment like H2, N14 with an external quadrupole field found in suitable crystal lattice. We then investigate the 'laziness'(property of the system to be lazy) of N-qubit mixed symmetric separable states and enumerate the conditions for them to be lazy. Further, we study the laziness of direct product states on application of a global and local noisy channels.

Item Type:	Article
Uncontrolled Keywords:	lazy state, Separable state, Symmetric state
Subjects:	D Physical Science > Physics
Divisions:	Yuvaraj college > Physics
Depositing User:	C Swapna Library Assistant
Date Deposited:	07 Jun 2019 06:20
Last Modified:	29 Jun 2019 06:33
URI:	http://eprints.uni-mysore.ac.in/id/eprint/2716

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