@article{10272/9618, year = {2014}, url = {http://hdl.handle.net/10272/9618}, abstract = {We study the entanglement properties of the shape phase transitions between different geometric limits of two coupled equivalent molecular benders modeled with the two-dimensional limit of the vibron model. This system has four possible geometric configurations: linear, cis-bent, trans-bent, and nonplanar. We show how the entanglement, accessed through the calculation of the linear entropy, between benders and between rotational and vibrational degrees of freedom changes sensitively in the critical regions of this two-fluid bosonic model. The numeric calculation is complemented with a variational approach to the ground-state wave function in terms of symmetry-adapted coherent states.}, organization = {info:eu-repo/grantAgreement/The authors thank J. M. Arias and F. Iachello for discussions and valuable comments. Work was partially supported by the Spanish MINECO under projects FIS2011-29813-C02-01 and FIS2011-28738-C02-02 and by the University of Granada under project PP2012-PI04.}, publisher = {American Physical Society}, title = {Entanglement in shape phase transitions of coupled molecular benders}, doi = {10.1103/PhysRevA.89.032126}, author = {Calixto, M. and Pérez Bernal, Francisco}, }