2009/06/29 by Konstantin Bobkov, Bobkov, Konstantin
Computer Science · Physics and Astronomy · #Computational Geometry and Mesh Generation #Data Visualization and Analytics #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.0906.5359
22 pages, changed values in equations (56) and (57)
openalex publication_date 2009/06/29 · arxiv created 2009/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that there exists an exponentially large discretuum of vacua in G2-compactifications of M-theory without flux. In M-theory-inspired G2-MSSM, quantities relevant for particle physics remain virtually insensitive to large variations of the vacuum energy across the landscape. The purely non-perturbative vacua form a special subset of a more general class of vacua containing fractional Chern-Simons contributions. The cosmological constant can be dynamically neutralized via a chain of transitions interpolated by fractional gauge instantons describing spontaneous nucleation of M2-brane domain walls. Each transition is generically accompanied by a gauge symmetry breaking in some sector of the theory. In particular, the visible sector GUT symmetry breaking can likewise be triggered by a spontaneous nucleation of an M2-brane.