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Heavy quarkonia in a medium as a quantum dissipative system: Master-equation approach

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arxiv 1109.4271 v2 pith:P27NL2LY submitted 2011-09-20 nucl-th hep-ph

Nicolas Borghini , Clement Gombeaud This is my paper · ORCID
classification nucl-thhep-ph
keywords quantumapproachdissipativeheavymaster-equationmediumquarkoniaquarkonium
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The problem of the evolution of a heavy quarkonium in a medium can be recast as that of a quantum dissipative system. Within the framework of the master-equation approach to open quantum systems, we consider the real-time dynamics of quarkonia. We find that in a plasma at fixed temperature, the populations of the various quarkonium states evolve together, while their momentum distribution satisfies a Fokker-Planck equation.

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Cited by 3 Pith papers

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  1. Schwinger-Keldysh Path Integral for Gauge theories

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    Constructs a manifestly diagonal-BRST-invariant Schwinger-Keldysh path integral for open non-Abelian gauge theories with arbitrary physical initial states, yielding Ward-Takahashi-Slavnov-Taylor identities and a Keldy...

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    A quantum circuit simulation of the next-to-leading-order Lindblad equation for bottomonium in the quark-gluon plasma matches QuTiP and finds a small color-octet contribution to the Upsilon(1S) survival probability.

  3. Quantum decoherence: a study applied to quarkonium-like bound states in strongly interacting matter

    hep-ph 2026-07 conditional novelty 4.0 of 10

    A Lindblad master equation for a J/psi-like harmonic oscillator in an expanding QGP shows that hydrodynamic cooling slows quantum decoherence compared to a static bath, with viscosity having negligible impact.

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