Please use this identifier to cite or link to this item: https://doi.org/10.1080/09500340701266922
Title: Quantumness without quantumness: Entanglement as classical correlations in higher dimensions
Authors: Vedral, V. 
Issue Date: Sep-2007
Citation: Vedral, V. (2007-09). Quantumness without quantumness: Entanglement as classical correlations in higher dimensions. Journal of Modern Optics 54 (13-15) : 2185-2192. ScholarBank@NUS Repository. https://doi.org/10.1080/09500340701266922
Abstract: I exploit the formal equivalence between the ground state of a d-dimensional quantum system and a d + 1-dimensional classical Ising chain to represent quantum entanglement in terms of classical correlations only. This offers a general "local hidden variable model" for all quantum phenomena existing in one dimension lower than the (hidden variable) classical model itself. The local hidden variable model is not contradicted by the implications of Bell's theorem. Formal theory is presented first and then exemplified by the quantum Ising spin chain in a transverse magnetic field. Here I explicitly show how to derive any two site entanglement in the transverse model from the partition function of the classical Ising spin chain existing in two dimensions. Some speculations are then presented regarding possible fundamental implications of these results.
Source Title: Journal of Modern Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/97718
ISSN: 09500340
DOI: 10.1080/09500340701266922
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