Thermal Entanglement Entropy Signature of Spin-Peierls Transition in Dimerized Isotropic XY Chain with Multi-Spin Interactions

Hai Lin Huang; Lin Jie Ding; Zhao Yu Sun

doi:10.4028/www.scientific.net/AMR.1021.46

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1021Thermal Entanglement Entropy Signature of...

Thermal Entanglement Entropy Signature of Spin-Peierls Transition in Dimerized Isotropic XY Chain with Multi-Spin Interactions

Abstract:

The finite-temperature entanglement entropy for an alternating spin-1/2 chain with multi-spin interactions is investigated by means of Green’s function theory combined with Jordan-Wigner transformation, to identify the spin-Peierls (SP) transition. It is found that the two-site thermal entanglement entropy is a useful tool to characterize the SP transition. In addition, the competition between multi-spin interaction and Peierls-dimerization plays a central role in the critical phenomenon of the system.

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Periodical:

Advanced Materials Research (Volume 1021)

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46-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1021.46

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Online since:

August 2014

Authors:

Hai Lin Huang*, Lin Jie Ding, Zhao Yu Sun

Keywords:

Entanglement Entropy, Multi-Spin Interactions, Spin-Peierls Transition

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