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Photon-assisted transport through a quantum dot coupled to superconductors |
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| Authors: | Sam Young Cho Kicheon Kang Chang-Mo Ryu Chul Koo Kim |
| Affiliation: | a Department of Physics, Pohang University of Science and Technology, Pohang, 790-784, Korea;b Max-Planck-Institut für Physik Komplexer Systeme Nöthnitzer Strasse 38, D-01187, Dresden, Germany;c Department of Physics and Institute for Mathematical Sciences, Yonsei University, Seoul, 120-749, Korea |
| Abstract: | Photon-assisted electron transport for resonant tunneling has been investigated by using a current formula developed based on the nonequilibrium Green’s function technique. We have studied the external frequency dependence as well as the energy level position dependence for the resonant ac tunneling through the quantum dot coupled to two superconducting reservoirs. |
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