Experimental determination of thermal entanglement in spin clusters using magnetic susceptibility measurements


The present work reports an experimental observation of thermal entanglement in a clusterized spin chain formed in the compound Na(2)Cu(5)Si(4)O(14). The presence of entanglement was investigated through two measured quantities, an entanglement witness and the entanglement of formation, both derived from the magnetic susceptibility. It was found that pairwise entanglement exists below similar to 200 K. Tripartite entanglement was also observed below similar to 240 K. A theoretical study of entanglement evolution as a function of applied field and temperature is also presented.



subject category



Souza, AM; Reis, MS; Soares-Pinto, DO; Oliveira, IS; Sarthour, RS


Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".