Negative Barnett effect, negative moment of inertia of gluon plasma and thermal evaporation of chromomagnetic condensate

Abstract

We discuss the negativity of the moment of inertia of (quark-)gluon plasma in a window of "supervortical" range of temperatures above the deconfining phase transition, $T\simeq (1\dots 1.5)T_c$ found recently in numerical Monte Carlo simulations by two independent methods. In our work, we confirm numerically that the origin of this effect is rooted in the thermal evaporation of the non-perturbative chromomagnetic condensate. We argue that the negative moment of inertia of gluon plasma indicates the presence of a novel effect, the negative spin-vortical coupling for gluons resulting in a negative gluonic Barnett effect: the spin polarization of gluons exceeds the total angular momentum of rotating plasma, thus forcing the orbital angular momentum to take negative values in the supervortical range of temperatures.

11 pages, 3 figures; acknowledgements added; discussion added; version accepted for publication in PRD

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• Bose-Einstein condensation in a rigidly rotating relativistic boson gas
• Chiral and deconfinement thermal transitions at finite quark spin polarization in lattice QCD simulations
• Chiral and deconfinement transitions in spin-polarized quark matter
• On the origin of mixed inhomogeneous phase in vortical gluon plasma
• Firewall boundaries and mixed phases of rotating quark matter in linear sigma model
• Generation of a scalar vortex in a rotational frame
• Casimir effect for scalar field rotating on a disk
• Chiral vortical conductivities and the moment of inertia of a rigidly rotating Fermi gas
• Chromomagnetic Condensate in Finite-Temperature SU(2) Yang-Mills Theory under Imaginary Rotation
• The Static Heavy Quark-Antiquark Potential within String Theory in Arbitrary Stationary Backgrounds