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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2006

Momentum distribution of electrons in parabolic quantum dots

Résumé

We investigate the momentum distribution of interacting electrons confined in a two-dimensional parabolic quantum dot for varying values of the interaction strength and for different number of electrons. We use an optimized Jastrow-type wave function for the ground state in which the Slater determinant part has been calculated using density-functional theory and evaluate the ground-state momentum distribution using the Fermi hypernetted-chain equations. We discuss the effects of interactions on the momentum distribution and reveal the existence of a shell structure in momentum space in analogy with what happens to the spatial density profile. The momentum distribution can thus be used as a further tool to investigate the effects of the interaction in parabolic quantum dots.

Dates et versions

hal-00089615 , version 1 (21-08-2006)

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Mario Gattobigio. Momentum distribution of electrons in parabolic quantum dots. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2006, 73, pp.235312. ⟨10.1103/PhysRevB.73.235312⟩. ⟨hal-00089615⟩
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