Lorentz Violation: Motivation and New Constraints

被引:132
作者
Liberati, Stefano [1 ,2 ]
Maccione, Luca [3 ,4 ]
机构
[1] SISSA, Astrophys Sector, I-34014 Trieste, Italy
[2] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[3] DESY, Theory Grp, D-22607 Hamburg, Germany
[4] Univ Hamburg, Inst Theoret Phys, D-22761 Hamburg, Germany
关键词
quantum gravity phenomenology; special relativity; high-energy astrophysics; cosmic rays; Planck scale; Crab Nebula; SPECIAL RELATIVITY; SPACE-TIME; CRAB-NEBULA; UPPER LIMIT; HIGH-ENERGY; RADIATION; BREAKDOWN; SYMMETRY; TESTS; TEV;
D O I
10.1146/annurev.nucl.010909.083640
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We review the main theoretical motivations and observational constraints oil Planck scale-suppressed violations of Lorentz invariance. After introducing the problems related to the phenomenological study of quantum gravitational effects, we discuss the main theoretical frameworks within which possible departures from Lorentz invariance can be described. In particular, we focus on the framework of effective field theory, describing several possible ways of including Lorentz violation therein and discussing their theoretical viability. We review the main low-energy effects that are expected in this framework. We discuss the current observational constraints on such a framework, focusing on those achievable through high-energy. astrophysics observations. In this context, we present a summary of the most recent and strongest constraints on quantum electrodynamics with Lorentz-violating nonrenormalizable operators. Finally, we discuss the status of the field and its future perspectives.
引用
收藏
页码:245 / 267
页数:23
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