The Positronium state in quartz

被引：10
|
作者：
Barbiellini, B. [1 ]
Platzman, P. M. [2 ]
机构：
[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
[2] Bell Labs, Alcatel Lucent, Murray Hill, NJ 07974 USA
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 11 | 2009年 / 6卷 / 11期
关键词：
ANNIHILATION; APPROXIMATION;
D O I：
10.1002/pssc.200982130
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The positronium state in quartz is described by a linear superposition of two states: the first describing the free positron in the crystal and the second corresponding to a positronium Bloch wavefunction in the lattice. The condition for positronium formation in the electron gas is deduced by using variational calculations of the positron binding energy to the electron system. The self annihilation parameter kappa introduced in positron lifetime experiments can be properly justified by using the mixed state. A variational method to calculate k is proposed.
引用
收藏
页码：2523 / +
页数：2
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