In-medium heavy-quarkonium from lattice QCD spectral functions

15th International Conference on Strangeness in Quark Matter

Rothkopf, Alexander^1

Institute for Theoretical Physics, Heidelberg University, Philosophenweg 16, Heidelberg

69120, Germany^1

关键词: Effective field theory;    Finite temperatures;    First principles;    Lattice QCD calculations;    Novel strategies;    Real-time information;    Spectral function;    Spectral information;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012026/pdf
DOI  :  10.1088/1742-6596/668/1/012026

来源: IOP

【 摘 要 】

We discuss recent progress in the study of in-medium heavy quarkonium using first-principles lattice QCD calculations and effective field theory. In particular our focus lies on real-time information carried by QCD spectral functions and we report on a novel strategy for their extraction from Euclidean-time simulations. Combining an effective description for heavy quarks with finite temperature lattice QCD we compute in-medium spectra providing insight in heavy quarkonium melting in a static thermal medium. On the other hand we use spectral information to extract the complex in-medium potential which provides the basis for a dynamical description of quarkonium real-time evolution via the Schrö dinger equation.