Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 185007 |
| Seitenumfang | 25 |
| Fachzeitschrift | Classical and quantum gravity |
| Jahrgang | 41 |
| Ausgabenummer | 18 |
| Frühes Online-Datum | 23 Aug. 2024 |
| Publikationsstatus | Veröffentlicht - 19 Sept. 2024 |
Abstract
We derive the equations of motion that arise from the one-loop effective action for the geometry of 3+1 dimensional quantum branes in the IKKT matrix model. These equations are cast into the form of generalized Einstein equations, with extra contributions from dilaton and axionic fields, as well as a novel anharmonicity tensor Cµν capturing the classical Yang-Mills-type action. The resulting gravity theory approximately reduces to general relativity in some regime, but differs significantly at cosmic scales, leading to an asymptotically flat Friedmann-Lemaître-Robertson-Walker cosmological evolution governed by the classical action.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik und Astronomie (sonstige)
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in: Classical and quantum gravity, Jahrgang 41, Nr. 18, 185007, 19.09.2024.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Modified Einstein equations from the 1-loop effective action of the IKKT model
AU - Kumar, Kaushlendra
AU - Steinacker, Harold C.
N1 - Publisher Copyright: © 2024 The Author(s). Published by IOP Publishing Ltd.
PY - 2024/9/19
Y1 - 2024/9/19
N2 - We derive the equations of motion that arise from the one-loop effective action for the geometry of 3+1 dimensional quantum branes in the IKKT matrix model. These equations are cast into the form of generalized Einstein equations, with extra contributions from dilaton and axionic fields, as well as a novel anharmonicity tensor Cµν capturing the classical Yang-Mills-type action. The resulting gravity theory approximately reduces to general relativity in some regime, but differs significantly at cosmic scales, leading to an asymptotically flat Friedmann-Lemaître-Robertson-Walker cosmological evolution governed by the classical action.
AB - We derive the equations of motion that arise from the one-loop effective action for the geometry of 3+1 dimensional quantum branes in the IKKT matrix model. These equations are cast into the form of generalized Einstein equations, with extra contributions from dilaton and axionic fields, as well as a novel anharmonicity tensor Cµν capturing the classical Yang-Mills-type action. The resulting gravity theory approximately reduces to general relativity in some regime, but differs significantly at cosmic scales, leading to an asymptotically flat Friedmann-Lemaître-Robertson-Walker cosmological evolution governed by the classical action.
KW - IKKT matrix model
KW - modified Einstein equations
KW - one-loop effective action
UR - http://www.scopus.com/inward/record.url?scp=85202071605&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2312.01317
DO - 10.48550/arXiv.2312.01317
M3 - Article
AN - SCOPUS:85202071605
VL - 41
JO - Classical and quantum gravity
JF - Classical and quantum gravity
SN - 0264-9381
IS - 18
M1 - 185007
ER -