Quantum correlations in a gravitational collapse simulation with SpheriCo.jl

IF 5.4 1区 物理与天体物理 Q1 Physics and Astronomy
Benjamin Berczi, Magdalena Eriksson, Thanasis Giannakopoulos, Paul M. Saffin
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引用次数: 0

Abstract

We report on work using a newly developed code, SpheriCo.jl, that computes the gravitational collapse of a spherical scalar field, where the scalar can be either a classical field, or a quantum field operator. By utilising summation-by-parts methods for the numerical derivatives we are able to simulate the collapse longer than was possible previously due to enhanced numerical stability. We present a suite of tests for the code that tests its accuracy and stability, both for the classical and quantum fields. We are able to observe critical behavior of gravitational collapse for the classical setup, in agreement with expected results. The code is also used to compute two-point correlation functions, with results that hint at a non-trivial correlation across the horizon of Hawking quanta.

用SpheriCo.jl模拟引力坍缩中的量子关联
我们使用新开发的代码SpheriCo来报告工作。Jl,它计算了球形标量场的引力坍缩,标量可以是经典场,也可以是量子场算子。通过利用数值导数的分部求和方法,由于增强了数值稳定性,我们能够比以前更长时间地模拟崩溃。我们提出了一套测试的代码,测试其准确性和稳定性,无论是经典和量子场。我们能够在经典设置下观察到引力坍缩的临界行为,与预期结果一致。该代码还用于计算两点相关函数,其结果暗示了跨越霍金量子视界的非平凡相关性。
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来源期刊
Journal of High Energy Physics
Journal of High Energy Physics 物理-物理:粒子与场物理
CiteScore
10.30
自引率
46.30%
发文量
2107
审稿时长
1.5 months
期刊介绍: The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).
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