Abstract
A two-dimensional double-barrier nanoring under in-plane electric fields is proposed toinvestigate field-controlled two-electron spectra and entanglements. It has beenfound that changing the direction of the field can destroy the symmetries of thewavefunctions and has great impact on the spectra. The angle between the barriers,along with the intensity and direction of the field, can be used for controlling theentanglements of both the ground and excited states. The structure-dependent andfield-controlled far-infrared spectroscopies are useful in such investigations. It is helpful formanipulating the entanglements of indistinguishable particles in nanostructures.
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