Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The theory of dynamical random surfaces with extrinsic curvature

Ambjørn, J. ; Irbäck, A. LU orcid ; Jurkiewicz, J. and Petersson, B. (1993) In Nuclear Physics, Section B 393(3). p.571-600
Abstract

We analyse numerically the critical properties of a two-dimensional discretized random surface with extrinsic curvature embedded in a three-dimensional space. The use of the toroidal topology enables us to enforce the non-zero external extension without the necessity of defining a boundary and allows us to measure directly the string tension. We show that a phase transition from the crumpled phase to the smooth phase observed earlier for a spherical topology appears also for a toroidal surface for the same finite value of the coupling constant of the extrinsic curvature term. The phase transition is characterized by the vanishing of the string tension. We discuss the possible non-trivial continuum limit of the theory, when approaching... (More)

We analyse numerically the critical properties of a two-dimensional discretized random surface with extrinsic curvature embedded in a three-dimensional space. The use of the toroidal topology enables us to enforce the non-zero external extension without the necessity of defining a boundary and allows us to measure directly the string tension. We show that a phase transition from the crumpled phase to the smooth phase observed earlier for a spherical topology appears also for a toroidal surface for the same finite value of the coupling constant of the extrinsic curvature term. The phase transition is characterized by the vanishing of the string tension. We discuss the possible non-trivial continuum limit of the theory, when approaching the critical point. Numerically we find a value of the critical exponent ν to be between 0.38 and 0.42. The specific heat, related to the extrinsic curvature term seems not to diverge (or diverge slower than logarithmically) at the critical point.

(Less)
Please use this url to cite or link to this publication:
author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics, Section B
volume
393
issue
3
pages
30 pages
publisher
North-Holland
external identifiers
  • scopus:0000838449
ISSN
0550-3213
DOI
10.1016/0550-3213(93)90074-Y
language
English
LU publication?
no
id
2f069bae-7583-4bd9-a66b-6cd1c7817068
date added to LUP
2019-05-14 14:35:02
date last changed
2021-01-03 09:21:05
@article{2f069bae-7583-4bd9-a66b-6cd1c7817068,
  abstract     = {{<p>We analyse numerically the critical properties of a two-dimensional discretized random surface with extrinsic curvature embedded in a three-dimensional space. The use of the toroidal topology enables us to enforce the non-zero external extension without the necessity of defining a boundary and allows us to measure directly the string tension. We show that a phase transition from the crumpled phase to the smooth phase observed earlier for a spherical topology appears also for a toroidal surface for the same finite value of the coupling constant of the extrinsic curvature term. The phase transition is characterized by the vanishing of the string tension. We discuss the possible non-trivial continuum limit of the theory, when approaching the critical point. Numerically we find a value of the critical exponent ν to be between 0.38 and 0.42. The specific heat, related to the extrinsic curvature term seems not to diverge (or diverge slower than logarithmically) at the critical point.</p>}},
  author       = {{Ambjørn, J. and Irbäck, A. and Jurkiewicz, J. and Petersson, B.}},
  issn         = {{0550-3213}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  pages        = {{571--600}},
  publisher    = {{North-Holland}},
  series       = {{Nuclear Physics, Section B}},
  title        = {{The theory of dynamical random surfaces with extrinsic curvature}},
  url          = {{http://dx.doi.org/10.1016/0550-3213(93)90074-Y}},
  doi          = {{10.1016/0550-3213(93)90074-Y}},
  volume       = {{393}},
  year         = {{1993}},
}