Helicity precession of spin-1/2 particles in weak inertial and gravitational fields

被引：29
作者：
Singh, D [1 ]
Mobed, N
Papini, G
机构：
[1] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada
[2] Int Inst Adv Sci Studies, I-89019 Vietri sul Mare, SA, Italy
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2004年 / 37卷 / 34期
关键词：
D O I：
10.1088/0305-4470/37/34/010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We calculate the helicity and chirality effects experienced by a spin-1/2 particle subjected to classical electromagnetic and gravitational fields. The helicity evolution is then determined in the non-relativistic, relativistic and ultra-relativistic regimes. We find that inertia gravitation can distinguish between helicity and chirality. Helicity is not conserved, in general, even when the particles are massless. In this case, however, the inertial fields can hardly be applied to the fermions.
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收藏
页码：8329 / 8347
页数：19
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