Mirror QCD and Cosmological Constant

Abstract

An analog of Quantum Chromo Dynamics (QCD) sector known as mirror QCD (mQCD) can affect the cosmological evolution due to a non-trivial contribution to the Cosmological Constant analogous to that induced by the ground state in non-perturbative QCD. In this work, we explore a plausible hypothesis for trace anomalies cancellation between the usual QCD and mQCD. Such an anomaly cancellation between the two gauge theories, if exists in Nature, would lead to a suppression or even elimination of their contributions to the Cosmological Constant. The trace anomaly compensation condition and the form of the non-perturbative mQCD coupling constant in the infrared limit have been proposed by analysing a partial non-perturbative solution of the Einstein--Yang-Mills equations of motion.

9 pages, 1 figure; minor corrections

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• Phenomenological Review on Quark-Gluon Plasma: Concepts vs. Observations
• From Heisenberg-Euler Lagrangian to the discovery of chromomagnetic gluon condensation
• Different faces of confinement
• Mirror Symmetry of quantum Yang-Mills vacua and cosmological implications
• Gauge Field Theory Vacuum and Cosmological Inflation without Scalar Field
• Cosmology from Strong Interactions
• Cosmic Microwave Background as a thermal gas of SU(2) photons: Implications for the high-z cosmological model and the value of $H_0$