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Magnetic dipole and electric quadrupole responses of elliptic quantum dots in magnetic fields | | Enrico Lipparini
; Llorenç Serra
; Antonio Puente
; | | Date: |
15 May 2001 | | Journal: | Eur. Phys. J. B 27, 409 (2002) | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | The magnetic dipole (M1) and electric quadupole (E2) responses of two-dimensional quantum dots with an elliptic shape are theoretically investigated as a function of the dot deformation and applied static magnetic field. Neglecting the electron-electron interaction we obtain analytical results which indicate the existence of four characteristic modes, with different $B$-dispersion of their energies and associated strengths. Interaction effects are numerically studied within the time-dependent local-spin-density theory, assessing the validity of the non-interacting picture. | | Source: | arXiv, cond-mat/0105300 | | Services: | Forum | Review | PDF | Favorites | |
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