Correlation energy in a triplet state of a two-electron spherical quantum dot



Título del documento: Correlation energy in a triplet state of a two-electron spherical quantum dot
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000335803
ISSN: 0103-9733
Autors: 1
1
Institucions: 1Madurai Kamaraj University, School of Physics, -625021,India, Madurai, Tamil Nadu. India
Any:
Període: Sep
Volum: 39
Número: 3
Paginació: 526-530
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Correlation energies in the (1s-1p) triplet state of a two-electron spherical QD with square-well potential confinement are estimated for dots of different radii. The results are presented taking GaAs dot as an example. Our results show that the correlation energies are i) negative in a triplet state in contrast to the singlet state, ii)approaches zero as the dot size approaches infinity, and iii) the "fictitious crossing" of the singlet and triplet state energies at a particular dot size is explained on the basis of Hund's rules
Disciplines Física y astronomía
Paraules clau: Física atómica y molecular,
Energías de correlación,
Puntos cuánticos,
Pozos cuadrados
Keyword: Physics and astronomy,
Atomic and molecular physics,
Correlation energies,
Quantum dots,
Square wells
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