Spin-foam model for gravity coupled to massless scalar field

2018/07/16 by Marcin Kisielowski, Jerzy Lewandowski
Physics and Astronomy · #Black Holes and Theoretical Physics #Context (archaeology) #Cosmology and Gravitation Theories #Loop quantum cosmology #Loop quantum gravity #Massless particle #Noncommutative and Quantum Gravity Theories #Quantum cosmology #Quantum gravity #Scalar (mathematics) #Scalar field #Spin foam #gr-qc

paper · pdf · doi:10.1088/1361-6382/aafcc0

35 pages, 6 figures

arxiv created 2018/07/16 · openalex created_date 2018/08/03 · openalex publication_date 2019/01/09 · arxiv updated 2019/05/22 · openalex updated_date 2026/08/05

Abstract

Abstract A spin-foam model is derived from the canonical model of loop quantum gravity coupled to a massless scalar field. We generalized to the full theory the scheme first proposed in the context of loop quantum cosmology by Ashtekar et al (2009 Phys. Lett . B 681 347–52), later developed by Henderson et al (2011 Class. Quantum Grav . 28 025003).

Citations

• Spin Networks in Gauge Theory
• New scalar constraint operator for loop quantum gravity
• Linking covariant and canonical loop quantum gravity: New solutions to the Euclidean scalar constraint
• On the relation between rigging inner product and master constraint direct integral decomposition
• LQG vertex with finite Immirzi parameter
• Gravity quantized: Loop quantum gravity with a scalar field
• Spin foam models for quantum gravity