Inelastic quantum transport

被引:53
作者
Bonca, J
Trugman, SA
机构
[1] UNIV LJUBLJANA,FMF,LJUBLJANA 1000,SLOVENIA
[2] JOZEF STEFAN INST,LJUBLJANA 1000,SLOVENIA
关键词
D O I
10.1103/PhysRevLett.79.4874
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We solve a Schrodinger equation for inelastic quantum transport that retains full quantum coherence, in contrast to previous rate or Boltzmann equation approaches. The model Hamiltonian is the zero temperature 1D Holstein model for an electron coupled to optical phonons (polaron), in a strong electric field. The Hilbert space glows exponentially with electron position, forming a nonstandard Bethe lattice. We calculate nonperturbatively the transport current, electron-phonon correlations. and quantum diffusion. This system is a toy model for the constantly branching ''wave function of the universe.''.
引用
收藏
页码:4874 / 4877
页数:4
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