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Lattice QCD
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==Limitations== The method suffers from a few limitations: * Currently there is no formulation of lattice QCD that allows us to simulate the real-time dynamics of a quark-gluon system such as quark–gluon plasma. * It is computationally intensive, with the bottleneck not being [[FLOPS|flops]] but the bandwidth of memory access. * Computations of observables at nonzero baryon density suffer from a [[sign problem]], preventing direct computations of thermodynamic quantities.<ref name='Philipsen'>{{cite journal |last=Philipsen |first=O. |year=2008 |title=Lattice calculations at non-zero chemical potential: The QCD phase diagram |journal=Proceedings of Science |volume=77 |pages=011 |doi=10.22323/1.077.0011|doi-access=free }}</ref>
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