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Hartree-Fock dynamics in highly excited quantum dots | | Antonio Puente
; Llorenç Serra
; Vidar Gudmundsson
; | | Date: |
27 Aug 2001 | | Journal: | PRB 64, 235324 (2001) | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Materials Science | cond-mat.mes-hall cond-mat.mtrl-sci | | Abstract: | Time-dependent Hartree-Fock theory is used to describe density oscillations of symmetry-unrestricted two-dimensional nanostructures. In the small amplitude limit the results reproduce those obtained within a perturbative approach such as the linearized time-dependent Hartree-Fock one. The nonlinear regime is explored by studying large amplitude oscillations in a non-parabolic potential, which are shown to introduce a strong coupling with internal degrees of freedom. This excitation of internal modes, mainly of monopole and quadrupole character, results in sizeable modifications of the dipole absorption. | | Source: | arXiv, cond-mat/0108428 | | Services: | Forum | Review | PDF | Favorites | |
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