Two-electron entanglement in quasi-one-dimensional systems: Role of resonances

Alexander López, Otto Rendón, Víctor M. Villaba, Ernesto Medina

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)


We analyze the role of resonances in two-fermion entanglement production for a quasi-one-dimensional two-channel scattering problem. We solve exactly for the problem of a two-fermion antisymmetric product state scattering off a double- δ -well potential. It is shown that the two-particle concurrence of the post-selected state has an oscillatory behavior where the concurrence vanishes at the values of momenta for virtual bound states in the double well. These concurrence zeros are interpreted in terms of the uncertainty in the knowledge of the state of the one-particle subspace-reduced one-particle density matrix. Our results suggest the manipulation of fermion entanglement production through the resonance structure of quantum dots.

Idioma originalInglés
Número de artículo033401
PublicaciónPhysical Review B - Condensed Matter and Materials Physics
EstadoPublicada - 2007
Publicado de forma externa


Profundice en los temas de investigación de 'Two-electron entanglement in quasi-one-dimensional systems: Role of resonances'. En conjunto forman una huella única.

Citar esto