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− | Name pending.
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− | Chris has set up a workflow for computing the finite volume spectrum of an n to m meson system(at least he thinks so). The outline is as follows.
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− | 1. Determine the basis of operators you want to include by looking at the non-interacting energy levels. Note all of the operators that appear below the inelastic threshold, then pick at least the next 1 or as many as you wish(this is for use in the variational basis to remove excited state effects.
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− | 2. Project the operators to the relevant finite volume symmetry group, $O_h$ for cubic and $D_{4h}$ for elongated boxes.
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− | 3. Take the operators and compute all of the relevant wick contractions, ex. $\bar{u}u\bar{d}d -> u\bar{u}d\bar{d}$.
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− | 4. The wick contractions give a list of diagrams for each element of the correlation matrix that needs to be computed.
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− | 5. Once all relevant diagrams are computed, combine them into correlators, apply the GEVP to the correlation matrix and fit the resultant spectrum to obtain the energy levels.
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− | = Codes =
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Latest revision as of 17:04, 24 October 2019
This page will contain some technical details about the correlation function manager.