https://doi.org/10.1140/epjb/e2012-30681-1
Regular Article
Quantum entanglement in heterometallic wheels*
1
Dipartimento di Scienze Fisiche, Informatiche e Matematiche,
Università di Modena e Reggio Emilia, 41125
Modena,
Italy
2
S3 Istituto Nanoscienze-CNR, 41125
Modena,
Italy
a
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received: 24 July 2012
Published online: 25 February 2013
Abstract
Molecular nanomagnets are widely engineerable, low-dimensional spin systems, and typically exhibit strongly correlated ground states. This makes them an ideal playground for investigating quantum entanglement. Here, we present a theoretical investigation of entanglement in a relevant class of nanomagntes, namely the Cr-based wheels. We use exchange energy as a simple means for detecting spin-pair and multi-spin entanglement, and derive the temperature range where such correlations are present in the equilibrium state of the molecules.
Contribution to the Topical Issue “New Trends in Magnetism and Magnetic Materials”, edited by Francesca Casoli, Massimo Solzi and Paola Tiberto.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013
