3 papers
quant-ph2026
Uncertainty inequalities in a non-Hermitian scenario
Yanet Alvarez, Mariela Portesi, Romina Ramirez +1
We investigate uncertainty relations for quantum observables evolving under non-Hermitian Hamiltonians, with particular emphasis on the role of metric operators. By constructing ap…
quant-ph2025
Non-standard quantum algebras and infinite-dimensional PT-symmetric systems
Ãngel Ballesteros, Romina RamÃrez, Marta Reboiro
In this work, we introduce a PT-symmetric infinite-dimensional representation of the Uz(sl(2,R)) Hopf algebra, and we analyse a multiparametric family of Hamiltonians constructed f…
quant-ph2024
Complex Scaling Method applied to the study of the Swanson Hamiltonian in the broken PT-symmetry phase
Viviano Fernández, Romina RamÃrez, Marta Reboiro
In this work, we study the non-PT symmetry phase of the Swanson Hamiltonian in the framework of the Complex Scaling Method. By constructing a bi-orthogonality relation, we apply th…