2008/05/31 by Mu-In Park, Mu-in Park · 5 citations
Mathematics · Physics and Astronomy · #Advanced Operator Algebra Research #Black Holes and Theoretical Physics #Class (philosophy) #Constant (computer programming) #Constraint (computer-aided design) #Cosmological constant #Einstein #Equivalence (formal languages) #Graviton #Noncommutative and Quantum Gravity Theories #Term (time) #hep-th
paper · pdf · doi:10.1088/1126-6708/2008/09/084
published as JHEP 0809:084,2008 · Published version in JHEP
openalex publication_date 2008/09/22 · arxiv created 2008/09/23 · arxiv updated 2014/11/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The complete non-linear three-dimensional Einstein gravity with gravitational Chern-Simons term and cosmological constant are studied in dreibein formulation. The constraints and their algebras are computed in an explicit form. From counting the number of first and second class constraints, the number of dynamical degrees of freedom, which equals to the number of propagating graviton modes, is found to be 1, "regardless of" the value of cosmological constant. I note also that the usual equivalence with Chern-Simons gauge theory does "not" work for general circumstances.