Persistent currents in a quantum ring: Effects of impurities and interactions.
作者： Tapash Chakraborty , Pekka Pietiläinen
关键词: Condensed matter physics 、 Persistent current 、 Energy spectrum 、 Coulomb 、 Quantum 、 Ring (chemistry) 、 Charge density 、 Gaussian 、 Physics 、 Impurity
摘要: We have studied the persistent current in a quantum ring presence of Gaussian impurity and/or with Coulomb interactions included. The potential mixes states, lifts degeneracies energy spectrum, and reduces from its impurity-free value. role absence or an was found to be insignificant. also present results for charge density system without interactions.
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