Quantum gravity of the Heisenberg algebra

Abstract We consider a simplified model of double scaled SYK (DSSYK) in which the Hamiltonian is the position operator of the Harmonic oscillator. This model captures the high temperature limit of DSSYK but could also be defined as a quantum theory in its own right. We study properties of the emerge...

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Main Authors: Ahmed Almheiri, Akash Goel, Xu-Yao Hu
Format: Article
Language:English
Published: SpringerOpen 2024-08-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP08(2024)098
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author Ahmed Almheiri
Akash Goel
Xu-Yao Hu
author_facet Ahmed Almheiri
Akash Goel
Xu-Yao Hu
author_sort Ahmed Almheiri
collection DOAJ
description Abstract We consider a simplified model of double scaled SYK (DSSYK) in which the Hamiltonian is the position operator of the Harmonic oscillator. This model captures the high temperature limit of DSSYK but could also be defined as a quantum theory in its own right. We study properties of the emergent geometry including its dynamics in response to inserting matter particles. In particular, we find that the model displays de Sitter-like properties such as that infalling matter reduces the rate of growth of geodesic slices between the two boundaries. The simplicity of the model allows us to compute the full generating functional for correlation functions of the length mode or any number of matter operators. We provide evidence that the effective action of the geodesic length between boundary points is non-local. Furthermore, we use the on-shell solution for the geodesic lengths between any two boundary points to reconstruct an effective bulk metric and reverse engineer the dilaton gravity theory that generates this metric as a solution.
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issn 1029-8479
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series Journal of High Energy Physics
spelling doaj-art-6159fe5c052b4f608464ddd4a9eba3a42024-11-24T12:07:31ZengSpringerOpenJournal of High Energy Physics1029-84792024-08-012024814010.1007/JHEP08(2024)098Quantum gravity of the Heisenberg algebraAhmed Almheiri0Akash Goel1Xu-Yao Hu2New York University Abu DhabiCenter for Cosmology and Particle Physics, New York UniversityCenter for Cosmology and Particle Physics, New York UniversityAbstract We consider a simplified model of double scaled SYK (DSSYK) in which the Hamiltonian is the position operator of the Harmonic oscillator. This model captures the high temperature limit of DSSYK but could also be defined as a quantum theory in its own right. We study properties of the emergent geometry including its dynamics in response to inserting matter particles. In particular, we find that the model displays de Sitter-like properties such as that infalling matter reduces the rate of growth of geodesic slices between the two boundaries. The simplicity of the model allows us to compute the full generating functional for correlation functions of the length mode or any number of matter operators. We provide evidence that the effective action of the geodesic length between boundary points is non-local. Furthermore, we use the on-shell solution for the geodesic lengths between any two boundary points to reconstruct an effective bulk metric and reverse engineer the dilaton gravity theory that generates this metric as a solution.https://doi.org/10.1007/JHEP08(2024)0982D GravityField Theories in Lower DimensionsModels of Quantum GravityGauge-Gravity Correspondence
spellingShingle Ahmed Almheiri
Akash Goel
Xu-Yao Hu
Quantum gravity of the Heisenberg algebra
Journal of High Energy Physics
2D Gravity
Field Theories in Lower Dimensions
Models of Quantum Gravity
Gauge-Gravity Correspondence
title Quantum gravity of the Heisenberg algebra
title_full Quantum gravity of the Heisenberg algebra
title_fullStr Quantum gravity of the Heisenberg algebra
title_full_unstemmed Quantum gravity of the Heisenberg algebra
title_short Quantum gravity of the Heisenberg algebra
title_sort quantum gravity of the heisenberg algebra
topic 2D Gravity
Field Theories in Lower Dimensions
Models of Quantum Gravity
Gauge-Gravity Correspondence
url https://doi.org/10.1007/JHEP08(2024)098
work_keys_str_mv AT ahmedalmheiri quantumgravityoftheheisenbergalgebra
AT akashgoel quantumgravityoftheheisenbergalgebra
AT xuyaohu quantumgravityoftheheisenbergalgebra