Parity violation in Poincar\'e gauge gravity
Yuri N. Obukhov
TL;DR
This paper investigates parity violation within Poincaré gauge gravity, examining two model classes extending Einstein-Cartan theory, and clarifies matter current conservation and effective Einstein equations.
Contribution
It provides a detailed analysis of parity violation in Poincaré gauge gravity and clarifies the derivation of effective field equations and energy-momentum currents.
Findings
Parity violation occurs in specific Poincaré gauge models.
Conservation laws of matter currents are clarified.
Effective Einstein equations are derived for arbitrary matter sources.
Abstract
We analyse the parity violation issue in the Poincar\'e gauge theory of gravity for the two classes of models which are built as natural extensions of the Einstein-Cartan theory. The conservation laws of the matter currents are revisited and we clarify the derivation of the effective Einstein field equation and the structure of the effective energy-momentum current for arbitrary matter sources.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Pulsars and Gravitational Waves Research