Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/17770
Title: Entanglement witness for spin glass
Authors: Koh, Chee Yeong
Kwek, Leong Chuan
Issue Date: 2015
Citation: Koh, C. Y., & Kwek, L. C. (2015). Entanglement witness for spin glass. Physica A: Statistical Mechanics and its Applications, 420, 324-330. http://dx.doi.org/10.1016/j.physa.2014.11.004
Abstract: We derived the entanglement witness (EW) in Ising model for both the magnetic susceptibility and specifi c heat capacity of a spin glass. The magnetic susceptibility EW curve for LiHoxY1-􀀀xF4 is formulated and compared with the existing data of LiHo0:167Y0:833F4 to identify the entangled and unentangled regions. The EW for the magnetic susceptibility was found to cut the cusp of the experimental result at a critical temperature of about 0.2669 K. The speci fic heat capacity EW curve for CuxMn is formulated and compared with the existing data of Cu0:279Mn to identify the entangled and unentangled region for the various applied magnetic field B. With increasing B, the critical temperature where the EW curve intersects the experimental data, increases as well.
Description: This is the final draft, after peer-review, of a manuscript published in Physica A: Statistical Mechanics and its Applications. The published version is available online at http://dx.doi.org/10.1016/j.physa.2014.11.004
URI: http://hdl.handle.net/10497/17770
ISSN: 0378-4371
Other Identifiers: 10.1016/j.physa.2014.11.004
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