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Single Impurity Scattering in One-Channel Spinless Luttinger Liquid |
| HAN Yue-Wu1,3;XIE Hong-Yi2;LIU Yu-Liang2;CAI Shao-Hong1,4; HU Lin1 |
| 1Laboratory for Photoelectric Technology and Applications, Department of Physics, Guizhou University, Guiyang 5500252Department of Physics, Renmin University of China, Beijing 1008723Guizhou Radio and TV University, Guiyang 5500044Guizhou College of Finance and Economics, Guiyang 550004 |
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HAN Yue-Wu, XIE Hong-Yi, LIU Yu-Liang et al 2008 Chin. Phys. Lett. 25 2211-2214 |
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Abstract Using bosonization and phase shift representation, we rigorously treat backward scattering of electrons on an impurity in a one-dimensional interacting electronic system, and demonstrate that correlation exponents of the system depend on a phase shift induced by the backward scattering, and usual exponent duality of the correlation functions between ultraviolet and infrared fixed points comes from the phase shift dependence of the correlation exponents. Finally, we study the tunnelling conductance of the system at zero temperature and obtain a modified Landauer-Bütiker formula.
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| Keywords:
73.63.Kv
71.27.+a
73.23.Hk
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Received: 03 March 2008
Published: 31 May 2008
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| PACS: |
73.63.Kv
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(Quantum dots)
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71.27.+a
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(Strongly correlated electron systems; heavy fermions)
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73.23.Hk
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(Coulomb blockade; single-electron tunneling)
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