RT Journal Article
T1 Quantum fidelity susceptibility in excited state quantum phase transitions: Application to the bending spectra of nonrigid molecules
A1 Khalouf-Rivera, Jamil
A1 Carvajal Zaera, Miguel
A1 Pérez Bernal, Francisco
AB We characterize excited state quantum phase transitions in the two dimensional limit ofthe vibron model with the quantum fidelity susceptibility, comparing the obtained resultswith the information provided by the participation ratio. As an application, we locate theeigenstate closest to the barrier to linearity and determine the linear or bent characterof the different overtones for particular bending modes of six molecular species. Weperform a fit and use the optimized eigenvalues and eigenstates in three cases and makeuse of recently published results for the other three cases.
PB SciPost Foundation
SN 2542-4653
YR 2022
FD 2022-01-04
LK http://hdl.handle.net/10272/20414
UL http://hdl.handle.net/10272/20414
LA eng
NO Khalouf-Rivera, J., Carvajal, M., & Perez-Bernal, F. (2022). Quantum fidelity susceptibility in excited state quantum phase transitions: application to the bending spectra of nonrigid molecules. In SciPost Physics (Vol. 12, Issue 1). Stichting SciPost. https://doi.org/10.21468/scipostphys.12.1.002
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026