Semiclassical gravity beyond coherent states

被引：1

作者：

Ahmed, Shahnewaz ^{[1
,2
]}

Lima, Caroline ^{[1
,2
,3
]}

Martin-Martinez, Eduardo ^{[1
,3
,4
]}

机构：

[1] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

[2] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[3] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

[4] Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 2024卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Models of Quantum Gravity; Classical Theories of Gravity; Effective Field Theories; QUANTUM VACUUM ENERGY; PARTICLE CREATION;

D O I：

10.1007/JHEP01(2024)001

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We show that it is possible to still use semiclassical gravity together with quantum field theory beyond the regimes where the field state is coherent. In particular, we identify families of cat states (superposition of almost-distinguishable coherent states that have very non-classical features) for which the gravitational backreaction can be modeled by semiclassical gravity.

引用

页数：17

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