Baryon bag simulation of QCD in the strong coupling limit
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2019-10-21
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We explore the possibility of a simulation of strong coupling QCD in terms of so-called baryon bags. In this form the known representation in terms of monomers, dimers and baryon loops is reorganized such that the baryon contributions are collected in space time domains referred to as baryon bags. Within the bags three quarks propagate coherently as a baryon that is described by a free fermion, whereas the rest of the lattice is solely filled with interacting meson terms, i.e., quark and diquark monomers and dimers. We perform a simulation directly in the baryon bag language using a newly developed worm update and show first results in two dimensions.
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Scholars@Duke
Shailesh Chandrasekharan
Prof. Chandrasekharan is interested in understanding quantum field theories non-perturbatively from first principles calculations. His research focuses on lattice formulations of these theories with emphasis on strongly correlated fermionic systems of interest in condensed matter, particle and nuclear physics. He develops novel Monte-Carlo algorithms to study these problems. He is particularly excited about solutions to the notoriously difficult sign problem that haunts quantum systems containing fermions and gauge fields. He has proposed an idea called the fermion bag approach, using which he has been able to solve numerous sign problems that seemed unsolvable earlier. Using various algorithmic advances over the past decade, he is interested in understanding the properties of quantum critical points containing interacting fermions. Some of his recent publications can be found here. Recently he is exploring how one can use quantum computers to solve quantum field theories.
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