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Correspondence between entanglement and Fano resonance of surface plasmons

机译:表面等离子体激元的纠缠与Fano共振之间的对应关系

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摘要

We investigate the Fano resonance of the scattering spectra in a system consisting of a metal nanowire coupled to two colloidal quantum dots. By varying the coupling strengths and the energy spacings of the quantum dot qubits, we find that both the line shapes and the presence of the Fano resonance can be controlled. Furthermore, the degree of two-qubit entanglement can vary from unity to zero when the Fano resonance occurs. This indicates that there exists correlations between the two-qubit entanglement and the Fano resonance.
机译:我们研究了由耦合到两个胶体量子点的金属纳米线组成的系统中散射光谱的Fano共振。通过改变量子点量子比特的耦合强度和能量间隔,我们发现线形和法诺共振的存在都可以得到控制。此外,当发生法诺共振时,两个量子比特的纠缠度可以从一变化到零。这表明在两个量子位的纠缠和法诺共振之间存在相关性。

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