Add to ORKGThe non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a flaw in a commonly accepted proof is revealed. Some aspects of avoided crossings are illustrated by means of simple models. One of them shows the close relationship between avoided crossings and exceptional points.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicada
International audienceWe derive the ground state energy up to the fourth order in the fine structure...
Summary. Energy level crossings are the landmarks that separate classical from quantum mechanical mo...
We present a rigorous derivation of classical molecular dynamics (MD) from quantum molecular dynami...
The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a ...
The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a ...
The purpose of this letter is to correct the lack of generality of one of the statements put forward...
In order to create a degeneracy in a quantum mechanical system without symmetries one must vary two ...
In order to create a degeneracy in a quantum mechanical system without symmetries one must vary two ...
Energy level crossings are the landmarks that separate classical from quantum mechanical modeling of...
Two families of avoided crossings exist: (a) geometry-dependent, and (b) model-dependent. They are c...
Abstract. We Eonsider the energy levels of a generic quantum mechanical system with Hamiltonian H de...
In theories with anomalous fermion number nonconservation, the level crossing picture is considered ...
M.Sc. (Applied Mathematics)Entanglement is a quantum resource with applications in quantum communica...
Recently a method for adiabatic quantum computation has been proposed and there has been considerabl...
A voided crossings influence spectra and intramolecular redistribution of energy. A semiclassical th...
International audienceWe derive the ground state energy up to the fourth order in the fine structure...
Summary. Energy level crossings are the landmarks that separate classical from quantum mechanical mo...
We present a rigorous derivation of classical molecular dynamics (MD) from quantum molecular dynami...
The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a ...
The non-crossing rule for the energy levels of a parameter-dependent Hamiltonian is revisited and a ...
The purpose of this letter is to correct the lack of generality of one of the statements put forward...
In order to create a degeneracy in a quantum mechanical system without symmetries one must vary two ...
In order to create a degeneracy in a quantum mechanical system without symmetries one must vary two ...
Energy level crossings are the landmarks that separate classical from quantum mechanical modeling of...
Two families of avoided crossings exist: (a) geometry-dependent, and (b) model-dependent. They are c...
Abstract. We Eonsider the energy levels of a generic quantum mechanical system with Hamiltonian H de...
In theories with anomalous fermion number nonconservation, the level crossing picture is considered ...
M.Sc. (Applied Mathematics)Entanglement is a quantum resource with applications in quantum communica...
Recently a method for adiabatic quantum computation has been proposed and there has been considerabl...
A voided crossings influence spectra and intramolecular redistribution of energy. A semiclassical th...
International audienceWe derive the ground state energy up to the fourth order in the fine structure...
Summary. Energy level crossings are the landmarks that separate classical from quantum mechanical mo...
We present a rigorous derivation of classical molecular dynamics (MD) from quantum molecular dynami...