Quantum dot ground state energies and spin polarizations: soft versus hard chaos
Denis Ullmo 1, 2, Tatsuro Nagano 3, Steven Tomsovic 3 Physical Review Letters 90 (2003) 176801 We consider how the nature of the dynamics affects ground state properties of ballistic quantum dots. We find that « mesoscopic Stoner fluctuations », that arise from the residual screened Coulomb interaction, are very sensitive to the degree of chaos. It leads to ground state energies and spin-polarizations […]
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