Nonequilibrium Green's function method and near-field radiation
Department of Physics, National University of Singapore
The nonequilibrium Green's function (NEGF) method is a powerful technique for studying quantum transport. We begin with a brief introduction of NEGF, emphasizing the role of contour order in defining the Green's functions. After a briefly mentioning of few applications, we discuss the problem of near-field radiation between metal plates. In dealing with the quantum field of the electromagnetism, an operator normal order is essential in using the Poynting vector to compute the radiation energy flux. We then present results of our model calculations.
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