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arXiv 1609.03080math-phmath.APmath.MP
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关于Hadamard态的绝热极限

On the adiabatic limit of Hadamard states

Nicoló Drago, Christian Gérard

摘要:

本文研究了自由量子Klein-Gordon场的Hadamard态的绝热极限,当背景度规和场质量从初始值到最终值缓慢变化时。如果Klein-Gordon场保持质量,我们通过将Avron-Seiler-Yaffe的绝热定理推广到辛框架,证明了初始真空态的绝热极限是(最终)真空态.在只有场质量变化的情况下,使用模分解方法的抽象版本,我们也可以考虑初始或最终质量为零的情况,并且初始状态是热态或更一般的阿达玛态。

英文摘要:

We consider the adiabatic limit of Hadamard states for free quantum Klein-Gordon fields, when the background metric and the field mass are slowly varied from their initial to final values. If the Klein-Gordon field stays massive, we prove that the adiabatic limit of the initial vacuum state is the (final) vacuum state, by extending to the symplectic framework the adiabatic theorem of Avron-Seiler-Yaffe. In cases when only the field mass is varied, using a abstract version of the mode decomposition method we can also consider the case when the initial or final mass vanishes, and the initial state is either a thermal state or a more general Hadamard state.

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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