On solutions of the nonequilibrium x-ray edge problem

被引:7
作者
Braunecker, B [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Fac Basic Sci, Inst Theoret Phys, CH-1015 Lausanne, Switzerland
来源
PHYSICAL REVIEW B | 2003年 / 68卷 / 15期
关键词
D O I
10.1103/PhysRevB.68.153104
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We rediscuss a nonequilibrium x-ray edge problem which in recent publications led to discrepancies between the results of the perturbative and of an extended Nozieres-De Dominicis approach. We show that this problem results from an uncritical separation of momenta of the scattering potential, and we propose a corrected Nozieres-De Dominicis solution.
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页数:4
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