Emergent Gravity, Violated Relativity and Dark Matter

• 作者: Yury F. Pirogov
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: SPONTANEOUS SYMMETRY Breaking Nonlinear REALIZATIONS Emergent Gravity General RELATIVITY VIOLATION DARK Matter
• 年，卷（期）: 2014,（15）
• 页码范围: 1418-1426
• 页数: 9页
• 分类号: O4

摘要

The nonlinear affine Goldstone model of the emergent gravity, built on the nonlinearly realized/ hidden affine symmetry, is concisely revisited. Beyond General Relativity, the explicit violation of general invariance/relativity, under preserving general covariance, is exposed. Dependent on a nondynamical affine connection, a generally covariant second-order effective Lagrangian for metric gravity is worked out, with the general relativity violation and the gravitational dark matter serving as the signatures of emergence.