Peter O. Hess, Fridolin Weber, Benno Bodmann, José de Freitas Pacheco, Dimiter Hadjimichef, Marcelo Netz-Marzola, Geovane Naysinger, Moisés Razeira, César A. Zen Vasconcellos
{"title":"带有自耦合膨胀标量场的非交换支割量子引力:动力学方程","authors":"Peter O. Hess, Fridolin Weber, Benno Bodmann, José de Freitas Pacheco, Dimiter Hadjimichef, Marcelo Netz-Marzola, Geovane Naysinger, Moisés Razeira, César A. Zen Vasconcellos","doi":"10.1002/asna.20230171","DOIUrl":null,"url":null,"abstract":"<p>This article focuses on a recently developed formulation based on the noncommutative branch-cut cosmology, the Wheeler-DeWitt (WdW) equation, the Hořava–Lifshitz quantum gravity, chaotic and the coupling of the corresponding Lagrangian approach with the inflaton scalar field. Assuming a mini-superspace of variables obeying the noncommutative Poisson algebra, we examine the impact of the inflaton scalar field on the evolutionary dynamics of the branch-cut Universe scale factor, characterized by the dimensionless helix-like function <span></span><math>\n <semantics>\n <mrow>\n <msup>\n <mi>ln</mi>\n <mrow>\n <mo>−</mo>\n <mn>1</mn>\n </mrow>\n </msup>\n <mrow>\n <mo>[</mo>\n <mrow>\n <mi>β</mi>\n <mrow>\n <mo>(</mo>\n <mi>t</mi>\n <mo>)</mo>\n </mrow>\n </mrow>\n <mo>]</mo>\n </mrow>\n </mrow>\n <annotation>$$ {\\ln}^{-1}\\left[\\beta (t)\\right] $$</annotation>\n </semantics></math>. This scale factor characterizes a Riemannian foliated spacetime that topologically overcomes the primordial singularities. We take the Hořava–Lifshitz action modeled by branch-cut quantum gravity as our starting point, which depends on the scalar curvature of the branched Universe and its derivatives and which preserves the diffeomorphism property of General Relativity, maintaining compatibility with the Arnowitt–Deser–Misner formalism. We then investigate the sensitivity of the scale factor of the branch-cut Universe's dynamics.</p>","PeriodicalId":55442,"journal":{"name":"Astronomische Nachrichten","volume":"345 2-3","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Noncommutative branch-cut quantum gravity with a self-coupling inflation scalar field: Dynamical equations\",\"authors\":\"Peter O. Hess, Fridolin Weber, Benno Bodmann, José de Freitas Pacheco, Dimiter Hadjimichef, Marcelo Netz-Marzola, Geovane Naysinger, Moisés Razeira, César A. Zen Vasconcellos\",\"doi\":\"10.1002/asna.20230171\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This article focuses on a recently developed formulation based on the noncommutative branch-cut cosmology, the Wheeler-DeWitt (WdW) equation, the Hořava–Lifshitz quantum gravity, chaotic and the coupling of the corresponding Lagrangian approach with the inflaton scalar field. Assuming a mini-superspace of variables obeying the noncommutative Poisson algebra, we examine the impact of the inflaton scalar field on the evolutionary dynamics of the branch-cut Universe scale factor, characterized by the dimensionless helix-like function <span></span><math>\\n <semantics>\\n <mrow>\\n <msup>\\n <mi>ln</mi>\\n <mrow>\\n <mo>−</mo>\\n <mn>1</mn>\\n </mrow>\\n </msup>\\n <mrow>\\n <mo>[</mo>\\n <mrow>\\n <mi>β</mi>\\n <mrow>\\n <mo>(</mo>\\n <mi>t</mi>\\n <mo>)</mo>\\n </mrow>\\n </mrow>\\n <mo>]</mo>\\n </mrow>\\n </mrow>\\n <annotation>$$ {\\\\ln}^{-1}\\\\left[\\\\beta (t)\\\\right] $$</annotation>\\n </semantics></math>. This scale factor characterizes a Riemannian foliated spacetime that topologically overcomes the primordial singularities. We take the Hořava–Lifshitz action modeled by branch-cut quantum gravity as our starting point, which depends on the scalar curvature of the branched Universe and its derivatives and which preserves the diffeomorphism property of General Relativity, maintaining compatibility with the Arnowitt–Deser–Misner formalism. 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Noncommutative branch-cut quantum gravity with a self-coupling inflation scalar field: Dynamical equations
This article focuses on a recently developed formulation based on the noncommutative branch-cut cosmology, the Wheeler-DeWitt (WdW) equation, the Hořava–Lifshitz quantum gravity, chaotic and the coupling of the corresponding Lagrangian approach with the inflaton scalar field. Assuming a mini-superspace of variables obeying the noncommutative Poisson algebra, we examine the impact of the inflaton scalar field on the evolutionary dynamics of the branch-cut Universe scale factor, characterized by the dimensionless helix-like function . This scale factor characterizes a Riemannian foliated spacetime that topologically overcomes the primordial singularities. We take the Hořava–Lifshitz action modeled by branch-cut quantum gravity as our starting point, which depends on the scalar curvature of the branched Universe and its derivatives and which preserves the diffeomorphism property of General Relativity, maintaining compatibility with the Arnowitt–Deser–Misner formalism. We then investigate the sensitivity of the scale factor of the branch-cut Universe's dynamics.
期刊介绍:
Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.