Holography of information in a ball of finite radius
Abstract The principle of holography of information states that all information available in the bulk of asymptotically flat spacetime is also available near its boundary at spatial infinity. However, physical observers never have access to spatial infinity. Therefore, we ask the question: “Is infor...
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SpringerOpen
2025-06-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP06(2025)034 |
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| author | Nava Gaddam Ashik H |
| author_facet | Nava Gaddam Ashik H |
| author_sort | Nava Gaddam |
| collection | DOAJ |
| description | Abstract The principle of holography of information states that all information available in the bulk of asymptotically flat spacetime is also available near its boundary at spatial infinity. However, physical observers never have access to spatial infinity. Therefore, we ask the question: “Is information contained in a ball of finite radius also holographic in nature?”. Phrased differently, we ask whether correlation functions on the boundary of the ball capture all the information of all correlators in the bulk of the ball. In this work, we answer this question in the affirmative within the confines of linearised quantum gravity for generic low-energy (free Klein-Gordon) states in flat space created by the action of unitaries on the vacuum to leading order in a certain perturbative parameter. For an infinite sub-class of these states, our results are perturbatively exact and valid to all orders in this same parameter. Unlike at infinity, massive and massless fields can be captured within the same framework. |
| format | Article |
| id | doaj-art-bcff0b9972ec4e9bbfe1097579d7b02e |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-bcff0b9972ec4e9bbfe1097579d7b02e2025-08-20T03:42:45ZengSpringerOpenJournal of High Energy Physics1029-84792025-06-012025613310.1007/JHEP06(2025)034Holography of information in a ball of finite radiusNava Gaddam0Ashik H1International Centre for Theoretical Sciences, Tata Institute for Fundamental SciencesInternational Centre for Theoretical Sciences, Tata Institute for Fundamental SciencesAbstract The principle of holography of information states that all information available in the bulk of asymptotically flat spacetime is also available near its boundary at spatial infinity. However, physical observers never have access to spatial infinity. Therefore, we ask the question: “Is information contained in a ball of finite radius also holographic in nature?”. Phrased differently, we ask whether correlation functions on the boundary of the ball capture all the information of all correlators in the bulk of the ball. In this work, we answer this question in the affirmative within the confines of linearised quantum gravity for generic low-energy (free Klein-Gordon) states in flat space created by the action of unitaries on the vacuum to leading order in a certain perturbative parameter. For an infinite sub-class of these states, our results are perturbatively exact and valid to all orders in this same parameter. Unlike at infinity, massive and massless fields can be captured within the same framework.https://doi.org/10.1007/JHEP06(2025)034Classical Theories of GravityEffective Field TheoriesModels of Quantum GravityBlack Holes |
| spellingShingle | Nava Gaddam Ashik H Holography of information in a ball of finite radius Journal of High Energy Physics Classical Theories of Gravity Effective Field Theories Models of Quantum Gravity Black Holes |
| title | Holography of information in a ball of finite radius |
| title_full | Holography of information in a ball of finite radius |
| title_fullStr | Holography of information in a ball of finite radius |
| title_full_unstemmed | Holography of information in a ball of finite radius |
| title_short | Holography of information in a ball of finite radius |
| title_sort | holography of information in a ball of finite radius |
| topic | Classical Theories of Gravity Effective Field Theories Models of Quantum Gravity Black Holes |
| url | https://doi.org/10.1007/JHEP06(2025)034 |
| work_keys_str_mv | AT navagaddam holographyofinformationinaballoffiniteradius AT ashikh holographyofinformationinaballoffiniteradius |