2007/04/30 by A. A. Andrianov, F. Cannata, P. Giacconi +5
Mathematics · Physics and Astronomy · #Complexification #Constant (computer programming) #Cosmological constant #Cosmological constant problem #Cosmology #Cosmology and Gravitation Theories #Dark energy #Duality (order theory) #Gauge theory #Geometry #Homogeneous space #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Observable #Physics #Pure mathematics #Quantum mechanics #Relativity and Gravitational Theory #Spontaneous symmetry breaking #Symmetry (geometry) #Symmetry breaking #Theoretical physics #Vacuum energy #Vacuum expectation value #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.1016/j.physletb.2007.06.040
published as Phys.Lett.B651:306-312,2007 · 11 pages, more relevant refs, refining cutoff definition of cosmological constant + eq.for regularized pressure added
arxiv created 2007/06/15 · openalex publication_date 2007/06/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We outline the evaluation of the cosmological constant in the framework of the standard field-theoretical treatment of vacuum energy and discuss the relation between the vacuum energy problem and the gauge-group spontaneous symmetry breaking. We suggest possible extensions of the 't Hooft-Nobbenhuis symmetry, in particular, its complexification till duality symmetry and discuss the compatible implementation on gravity. We propose to use the discrete time-reflection transform to formulate a framework in which one can eliminate the huge contributions of vacuum energy into the effective cosmological constant and suggest that the breaking of time--reflection symmetry could be responsible for a small observable value of this constant.