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Analytical attractor for Bjorken expansion
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We present an analytic solution of a simple set of equations that govern the expansion of boost-invariant plasmas of massless particles. These equations describe, approximately, the early time, collisionless regime, and the transition to hydrodynamics at late time. Their mathematical structure encompasses all versions of second order hydrodynamics when applied to Bjorken flows. The analytic solution provides an explicit expression for the attractor solution that connects the collisionless regime to hydrodynamics. It also constitutes a neat example of an application of the theory of resurgence in asymptotic series.
Forward citations
Cited by 3 Pith papers
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Onset of Bjorken Flow in Quantum Evolution of the Massive Schwinger Model
In the 1+1D massive Schwinger model, tensor network simulation of a localized excitation reveals Bjorken-like hydrodynamic flow for small fermion mass, but not for large mass.
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Attractor of hydrodynamic attractors
Second- and higher-order hydrodynamic attractors converge to the same universal curve before the Navier-Stokes limit, with the leading correction controlled only by second-order coefficients.
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Quantum thermalization of Quark-Gluon Plasma
In a 1+1D Schwinger model, strong-coupling quark Wigner functions thermalize to quantum statistical averages, while weak-coupling scalar and axial components do not because of many-body scars, and the θ-vacuum angle c...
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