RT Journal Article T1 Entanglement in shape phase transitions of coupled molecular benders A1 Calixto, M. A1 Pérez Bernal, Francisco AB We study the entanglement properties of the shape phase transitions between different geometric limits oftwo coupled equivalent molecular benders modeled with the two-dimensional limit of the vibron model. Thissystem has four possible geometric configurations: linear, cis-bent, trans-bent, and nonplanar. We show how theentanglement, accessed through the calculation of the linear entropy, between benders and between rotationaland 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 termsof symmetry-adapted coherent states. PB American Physical Society SN 1050-2947 SN 1094-1622 YR 2014 FD 2014 LK http://hdl.handle.net/10272/9618 UL http://hdl.handle.net/10272/9618 LA eng NO Calixto, M., Pérez Bernal, F.: "Entanglement in shape phase transitions of coupled molecular benders". Physical Review A. Vol. 89, 032126 (2014). ISSN 1050-2947 NO 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. DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026