Instantaneous vacuum and States of Low Energy for a scalar field in cosmological backgrounds

被引：0
作者：
Ferreiro, Antonio [1 ,2 ,3 ]
Pla, Silvia [4 ]
机构：
[1] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 AJ Nijmegen, Netherlands
[2] Univ Valencia, Dept Fis Teor, Burjassot 46100, Spain
[3] Univ Valencia, CSIC, Inst Fis Corpuscular, Burjassot 46100, Spain
[4] Kings Coll London, Theoret Particle Phys & Cosmol, London WC2R 2LS, England
来源：
AVENUES OF QUANTUM FIELD THEORY IN CURVED SPACETIME, AQFTCS 2022 | 2023年 / 2531卷
关键词：
TIME ORDERED PRODUCTS; QUANTUM-FIELDS;
D O I：
10.1088/1742-6596/2531/1/012008
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We construct the instantaneous vacuum state for a quantum scalar field coupled to another classical scalar field as described in [1]. We then compare it with the state of low energy constructed for a particular solution. We show that under physically motivated conditions they become very similar.
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页数：10
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