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Negative Barnett effect, negative moment of inertia of gluon plasma and thermal evaporation of chromomagnetic condensate
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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.
Forward citations
Cited by 7 Pith papers
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Spatially inhomogeneous confinement-deconfinement phase transition in rotating QGP
First-principles lattice simulations identify a spatially inhomogeneous confinement-deconfinement transition in rotating gluon plasma, with confinement localizing at the periphery for real angular velocities.
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Using a rotation–magnetic holographic dictionary calibrated to lattice QCD, the paper predicts real rotation raises T_c and induces a negative total moment of inertia in pure gluonic matter near deconfinement.
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In a rigidly rotating free Fermi gas, the relativistic Barnett effect produces different Fermi energies for spin-up and spin-down fermions, leading to a moment of inertia that scales as 1/T at high temperature, analog...
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QFT on rotating boxes at finite temperature
Rotating thermal boxes can be represented by path integrals on flat compact manifolds T^4/Z_k with rotated boundary conditions, allowing only discrete imaginary angular velocities.
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Rigid rotation does not restore a sharp BEC transition in a magnetized charged Bose gas; it only changes thermodynamics, and can flip the magnetic response toward paramagnetism.
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Linear sigma model with quarks and Polyakov loop in rotation: phase diagrams, Tolman-Ehrenfest law and mechanical properties
Rotation lowers critical temperatures for chiral and deconfinement transitions in the Polyakov linear sigma model under causality constraints, with mechanical properties computed in the homogeneous limit.
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Chromomagnetic Condensate in Finite-Temperature SU(2) Yang-Mills Theory under Imaginary Rotation
At one loop, imaginary rotation in the SU(2) Savvidy model enhances the chromomagnetic condensate and effective coupling, can suppress the Nielsen-Olesen instability in a finite window, and gives a negative moment-of-...
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