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3 papers · 2 filters
Anharmonicity-induced excited-state quantum phase transition in the symmetric phase of the two-dimensional limit of the vibron model
Jamil Khalouf-Rivera, Francisco Pérez-Bernal, Miguel Carvajal
In most cases, excited state quantum phase transitions can be associated with the existence of critical points (local extrema or saddle points) in a system's classical limit energy…
A digital quantum simulation of the Agassi model
Pedro Pérez-Fernández, José Miguel Arias, José Enrique García-Ramos +1
A digital quantum simulation of the Agassi model from nuclear physics is proposed and analyzed. The proposal is worked out for the case with four different sites. Numerical simulat…
Quantum fidelity susceptibility in excited state quantum phase transitions: application to the bending spectra of nonrigid molecules
J. Khalouf-Rivera, M. Carvajal, F. Pérez-Bernal
We characterize excited state quantum phase transitions in the two dimensional limit of the vibron model with the quantum fidelity susceptibility, comparing the obtained results wi…