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arXiv 0709.0767gr-qc
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引力波和磁场背景的精确Foldy-Wouthuysen变换

Exact Foldy-Wouthuysen transformation for gravitational waves and magnetic field background

Bruno Goncalves, Yuri N. Obukhov, Ilya L. Shapiro

摘要:

本文考虑在引力波和恒定均匀磁场的联合背景下Dirac旋量场的精确Foldy-Wouthuysen变换。通过取旋量场哈密顿量的经典极限,我们得到了非相对论性自旋粒子的运动方程。考虑了两种不同的引力场,在这两种情况下,引力波对旋量场和相应的自旋粒子的影响都可以通过足够强的磁场来加强。这一结果对于天体物理学的应用具有重要意义,并且在原理上对于基于原子物理学和精密干涉测量学的引力波探测器的研制具有重要意义。

英文摘要:

We consider an exact Foldy-Wouthuysen transformation for the Dirac spinor field on the combined background of a gravitational wave and constant uniform magnetic field. By taking the classical limit of the spinor field Hamiltonian we arrive at the equations of motion for the non-relativistic spinning particle. Two different kinds of the gravitational fields are considered and in both cases the effect of the gravitational wave on the spinor field and on the corresponding spinning particle may be enforced by the sufficiently strong magnetic field. This result can be relevant for the astrophysical applications and, in principle, useful for creating the gravitational wave detectors based on atomic physics and precise interferometry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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