Metamorphosis of Positronium Moving Across a Magnetic Field

B. O. Kerbikov, A. A. Simovonian
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Abstract

Positronium spectrum and lifetimes are known with a high precision. The situation is different for positronium moving across a magnetic field. The total momentum does not commute with the Hamiltonian and is replaced by conserved pseudomomentum. The internal dynamics is not separated from the motion of the system as a whole. The Coulomb potential well is distorted and a wide outer potential well is created. We analytically determine the energy spectrum for a broad range of the magnetic field and pseudomomentum values. We locate the region of these parameters for which the ground state resides in the outer well. The results may play a role in the supression of pulsars radio emission (polar cap problem).
穿越磁场的正电子的变形
正电子的光谱和寿命是非常精确的。正电子在磁场中运动的情况则不同。总动量并不与哈密顿换算,而是由保留的假动量取代。内部动力学与整个系统的运动并不分离。库仑势阱被扭曲,并产生了一个广阔的外势阱。我们通过分析确定了磁场和伪动量值大范围内的能量谱。我们确定了基态位于外势阱的参数区域。这些结果可能在抑制脉冲星射电发射(极帽问题)中发挥作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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