2017
DOI: 10.1007/jhep07(2017)024
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Precursors and BRST symmetry

Abstract: In the AdS/CFT correspondence, bulk information appears to be encoded in the CFT in a redundant way. A local bulk field corresponds to many different non-local CFT operators (precursors). We recast this ambiguity in the language of BRST symmetry, and propose that in the large N limit, the difference between two precursors is a BRST exact and ghost-free term. This definition of precursor ambiguities has the advantage that it generalizes to any gauge theory. Using the BRST formalism and working in a simple model… Show more

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Cited by 1 publication
(3 citation statements)
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“…Some work has been done by e.g. Freivogel and de Boer [21,22] using BRST symmetry, but a complete understanding hasn't been reached yet. Another problem is that we do not know the size of the code subspace.…”
Section: Resultsmentioning
confidence: 99%
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“…Some work has been done by e.g. Freivogel and de Boer [21,22] using BRST symmetry, but a complete understanding hasn't been reached yet. Another problem is that we do not know the size of the code subspace.…”
Section: Resultsmentioning
confidence: 99%
“…An important aspect that has been completely left out of the story of reconstruction is the built in gauge symmetry that is present in holographic theories. In fact, as it turns out, gauge symmetry displays the same essential feature as a QEC [20,21,22]. We will study the very simple toy model of [20] to exemplify these features.…”
Section: A Brief History Of Bulk Reconstructionmentioning
confidence: 92%
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