Time evolution techniques for detectors in relativistic quantum information
Time evolution techniques for detectors in relativistic quantum information
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DOI：
10.1088/1751-8113/46/16/165303
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
David Edward Bruschi;Antony R. Lee;I. Fuentes
中科院分区：
文献类型：
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作者：
David Edward Bruschi;Antony R. Lee;I. Fuentes
用来解决探测器和量子场相互作用的技术通常需要微扰方法。我们引入数学技术来解决的时间演化的任意数量的检测器与量子场在时空中移动，同时使用非微扰方法。我们的技术适用于谐振子检测器，并可以推广到治疗检测器模拟的量子场。由于我们引入的相互作用哈密顿量是二次的创建和湮灭运营商，我们能够从连续变量技术中常用的量子光学。
The techniques employed to solve the interaction of a detector and a quantum field commonly require perturbative methods. We introduce mathematical techniques to solve the time evolution of an arbitrary number of detectors interacting with a quantum field moving in space-time while using non-perturbative methods. Our techniques apply to harmonic oscillator detectors and can be generalized to treat detectors modelled by quantum fields. Since the interaction Hamiltonian we introduce is quadratic in creation and annihilation operators, we are able to draw from continuous variable techniques commonly employed in quantum optics.