Controlled flow of spin-entangled electrons via adiabatic quantum pumping |
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Authors: | Das Kunal K Kim Sungjun Mizel Ari |
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Affiliation: | Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA. |
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Abstract: | We propose a method to dynamically generate and control the flow of spin-entangled electrons, each belonging to a spin singlet, by means of adiabatic quantum pumping. The pumping cycle functions by periodic time variation of localized two-body interactions. We develop a generalized approach to adiabatic quantum pumping as traditional methods based on a scattering matrix in one dimension cannot be applied here. We specifically compute the flow of spin-entangled electrons within a Hubbard-like model of quantum dots, discuss possible implementations, and identify parameters that can be used to control the singlet flow. |
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