Using the nonequilibrium Green's function technique,we investigate the current induced heat generationin Kondo regime.The Kondo effect influences the heat generation significantly.In the curve of heat generation v...Using the nonequilibrium Green's function technique,we investigate the current induced heat generationin Kondo regime.The Kondo effect influences the heat generation significantly.In the curve of heat generation versusthe bias,a negative differential of the heat generation is exhibited.The symmetry of the heat generation is destroyed bythe strong electron-electron interaction and the electron-phonon interaction.展开更多
Using the nonequilibrium Green＇s function technique, we investigate the Kondo effect in the quantum dot with perpendicular magnetic fields, in which one is the Zeeman splitting lies in the z-direction and the other i...Using the nonequilibrium Green＇s function technique, we investigate the Kondo effect in the quantum dot with perpendicular magnetic fields, in which one is the Zeeman splitting lies in the z-direction and the other is the spin flip points at the x-direction. It is found whatever one or two magnetic fields are applied, the local density of states （LDOS） will split into two peaks. The positions of two Kondo resonance peaks are determined by Zeeman energy △ when J = 0, and by √△^2＋J^2 when J≠0.展开更多
Many domestic and international scholars have done a wide range of researches on electromagnetic and technology and have made some achievements. Electromagnetic technology has been used in forest pests control as a c...Many domestic and international scholars have done a wide range of researches on electromagnetic and technology and have made some achievements. Electromagnetic technology has been used in forest pests control as a convenient and high-efficient physics means. This article summaries the current study of the electromagnetic biological effect and introduces the appfication of microwave, pulsed electromagnetic field and electrostatic field to forest pests control. The research direction and prospect of the application of electromagnetic theory and technology to forest pests control arc also discussed.展开更多
基金Supported by the Scientific Research Fund of Hunan Provincial Education Department,China under Grant Nos.08B016 and 09B021
文摘Using the nonequilibrium Green's function technique,we investigate the current induced heat generationin Kondo regime.The Kondo effect influences the heat generation significantly.In the curve of heat generation versusthe bias,a negative differential of the heat generation is exhibited.The symmetry of the heat generation is destroyed bythe strong electron-electron interaction and the electron-phonon interaction.
基金Supported by the Special Funds of the National Science Foundation of China under Grant No.10847133the National Science Foundation of Education Bureau of Jiangsu Province under Grant No.08KJB140002the Natural Science Foundation of Fujian Province under Grant No.A061004
文摘Using the nonequilibrium Green＇s function technique, we investigate the Kondo effect in the quantum dot with perpendicular magnetic fields, in which one is the Zeeman splitting lies in the z-direction and the other is the spin flip points at the x-direction. It is found whatever one or two magnetic fields are applied, the local density of states （LDOS） will split into two peaks. The positions of two Kondo resonance peaks are determined by Zeeman energy △ when J = 0, and by √△^2＋J^2 when J≠0.
基金Supported by the National Nature Science Foundation of China (grant No. 30471384 )
文摘Many domestic and international scholars have done a wide range of researches on electromagnetic and technology and have made some achievements. Electromagnetic technology has been used in forest pests control as a convenient and high-efficient physics means. This article summaries the current study of the electromagnetic biological effect and introduces the appfication of microwave, pulsed electromagnetic field and electrostatic field to forest pests control. The research direction and prospect of the application of electromagnetic theory and technology to forest pests control arc also discussed.
