Generalized One-Particle Density Matrices and Quasifree States

Generalized One-Particle Density Matrices and Quasifree States
复制标题

广义单粒子密度矩阵和准自由态

DOI:
--
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Edmund Menge
Edmund Menge
中科院分区:
--
文献类型:
--
作者:
V. Bach;S. Breteaux;H. Knorr;Edmund Menge

文献摘要

参考文献

被引文献

相似文献

在费米子广义单粒子密度矩阵的基础上,我们引入广义单粒子和双粒子密度矩阵,在不假设粒子数守恒的情况下,给出了玻色子系统的二阶可表示性条件.此外,我们表明,这两种粒子的物种,对于一个半有界的哈密顿量,的能量泛函w.r.t准自由态的变化的下确界与一个纯准自由态的变化。此外,它证明了费米子,只有纯准自由态有一个广义的1-pdm是一个投影,玻色子和类似的声明。
In the spirit of the generalized one-particle density matrix for fermions, we introduce generalized one- and two-particle density matrices to state representability condi- tions up to second order for boson systems without assuming particle number-conservation. Furthermore, we show for both particle species that, for a semibounded Hamiltonian, the infimum of the variation of the energy functional w.r.t quasifree states coincides with the one of a variation over pure quasifree states. Moreover, it is proven for fermions that only pure quasifree states have a generalized 1-pdm that is a projection, and a similar statement for bosons.
准自由态非相对论单电子 Pauli-Fierz 模型的能量最小化
DOI: 10.4171/dm/434
发表时间: 2013
影响因子: 0.9
作者:
V. Bach;S. Breteaux;T. Tzaneteas
通讯作者: T. Tzaneteas