Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 67 (1998) | ISSUE 9 | PAGE 666
Gravity of monopole and string and gravitational constant in 3He-A
PACS: 04.90.+e, 11.27.+d, 67.57.-z
We discuss the effective metric produced in superfluid 3He-A by such topological objects as the radial disgyration and monopole. In relativistic theories these metrics are similar to that of the local string and global monopole correspondingly. But in 3He-A they have the negative angle deficit, which corresponds to the negative mass of the topological objects. The effective gravitational constant in superfluid 3He-A, deduced from the comparison with relativistic theories, is G ~ Δ-2, where the gap amlitude Δ plays the part of the Planck energy. G depends on temperature roughly as (1 — T2/T2)~2 and corresponds to the screening of the Newton's constant.