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What can Lattice QCD theorists learn from NMR spectroscopists?
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Euclidean-time hadron correlation functions computed in Lattice QCD (LQCD) are modeled by a sum of decaying exponentials, reminiscent of the exponentially damped sinusoid models of free induction decay (FID) in Nuclear Magnetic Resonance (NMR) spectroscopy. We present our initial progress in studying how data modeling techniques commonly used in NMR perform when applied to LQCD data.
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Cited by 2 Pith papers
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Block Lanczos algorithm for lattice QCD spectroscopy and matrix elements
Block Lanczos is shown to generalize the GEVP method for lattice QCD correlator matrices, providing faster convergence, two-sided error bounds, and improved signal-to-noise.
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Estimating energy levels from lattice QCD correlation functions using a transfer matrix formalism
A generalized eigenvalue formulation of the transfer matrix, equivalent to the oblique Lanczos method, with a KDE-based filtering scheme for spurious eigenvalues, extracts stable ground and excited state energies from...
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