Nonsingular global string compactifications

被引:191
作者
Gregory, R
机构
[1] Centre for Particle Theory, Durham University, Durham, DH1 3LE, South Road
关键词
D O I
10.1103/PhysRevLett.84.2564
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider an exotic "compactification" of spacetime in which there ore two infinite extra dimensions, using a global string instead of a domain wall. By having a negative cosmological constant we prove the existence of a nonsingular static solution using a dynamical systems argument. A nonsingular solution also exists in the absence of a cosmological constant with a time-dependent metric. We compare and contrast this solution with the Randall-Sundrum universe and the Cohen-Kaplan spacetime and consider the options of using such a model as a realistic resolution of the hierarchy problem.
引用
收藏
页码:2564 / 2567
页数:4
相关论文
共 27 条
  • [1] Akama K., 1982, Lect. Notes Phys, V176, P267, DOI DOI 10.1007/3-540-11994-9_41
  • [2] New dimensions at a millimeter to a fermi and superstrings at a TeV
    Antoniadis, I
    Arkani-Hamed, N
    Dimopoulos, S
    Dvali, G
    [J]. PHYSICS LETTERS B, 1998, 436 (3-4) : 257 - 263
  • [3] A POSSIBLE NEW DIMENSION AT A FEW TEV
    ANTONIADIS, I
    [J]. PHYSICS LETTERS B, 1990, 246 (3-4) : 377 - 384
  • [4] Phenomenology, astrophysics, and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity
    Arkani-Hamed, N
    Dimopoulos, S
    Dvali, G
    [J]. PHYSICAL REVIEW D, 1999, 59 (08)
  • [5] The hierarchy problem and new dimensions at a millimeter
    Arkani-Hamed, N
    Dimopoulos, S
    Dvali, G
    [J]. PHYSICS LETTERS B, 1998, 429 (3-4) : 263 - 272
  • [6] GRAVITATIONAL-FIELD OF A GLOBAL MONOPOLE
    BARRIOLA, M
    VILENKIN, A
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (04) : 341 - 343
  • [7] Thick domain wall universes
    Bonjour, F
    Charmousis, C
    Gregory, R
    [J]. CLASSICAL AND QUANTUM GRAVITY, 1999, 16 (07) : 2427 - 2445
  • [8] CHAMBLIN A, HEPTH9909130
  • [9] CHODOS A, HEPTH9909199
  • [10] THE EXACT METRIC ABOUT GLOBAL COSMIC STRINGS
    COHEN, AG
    KAPLAN, DB
    [J]. PHYSICS LETTERS B, 1988, 215 (01) : 67 - 72