Demonstration of negative local partial density of states in mesoscopic systems with Fano resonances, suggesting enhanced coherent currents.
Real quantum systems can exhibit a local object called local partial density of states (LPDOS) that cannot be proved within the axiomatic approach of quantum mechanics. We demonstrate that real mesoscopic system that can exhibit Fano resonances will show this object and also very counterintuitively it can become negative, resulting in the enhancement of coherent currents.
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Meena et al. (2025) studied this question.
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