Symmetry Sectors in Chord Space and Relational Holography in the DSSYK
- URL: http://arxiv.org/abs/2506.21447v3
- Date: Fri, 04 Jul 2025 15:04:44 GMT
- Title: Symmetry Sectors in Chord Space and Relational Holography in the DSSYK
- Authors: Sergio E. Aguilar-Gutierrez,
- Abstract summary: We find different symmetry sectors generated by specific constraints within the chord Hilbert space of the DSSYK with matter.<n>These include chord parity symmetry, corresponding to ETW branes and Euclidean wormholes in sine dilaton gravity.<n>We deduce the holographic dictionary by matching geodesic lengths in the bulk with the spread complexity of the parity-gauged DSSYK.
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- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Can there be multiple bulk theories for the same boundary theory? We answer this affirmatively in the double-scaled SYK (DSSYK) model using the tools of constrained systems. We find different symmetry sectors generated by specific constraints within the chord Hilbert space of the DSSYK with matter. Each sector corresponds to a different bulk description. These include chord parity symmetry, corresponding to End-Of-The-World (ETW) branes and Euclidean wormholes in sine dilaton gravity; and relative time-translations in a doubled DSSYK model (as a single DSSYK with an infinitely heavy chord) used in de Sitter holography. We derive the partition functions and thermal correlation functions in the ETW brane and Euclidean wormhole systems from the boundary theory. We deduce the holographic dictionary by matching geodesic lengths in the bulk with the spread complexity of the parity-gauged DSSYK. The Euclidean wormholes of fixed size are perturbatively stable, and their baby universe Hilbert space is non-trivial only when matter is added. We conclude studying the constraints in the path integral of the doubled DSSYK. We derive the gauge invariant operator algebra of one of the DSSYKs dressed to the other one and discuss its holographic interpretation.
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