Conformally invariant fractals and potential theory

被引:124
作者
Duplantier, B [1 ]
机构
[1] Serv Phys Theor Saclay, F-91191 Gif Sur Yvette, France
[2] Inst Henri Poincare, F-75231 Paris 05, France
[3] Isaac Newton Inst Math Sci, Cambridge CB3 0HE, England
关键词
D O I
10.1103/PhysRevLett.84.1363
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The multifractal (MF) distribution of the electrostatic potential near any conformally invariant fractal boundary, like a critical O(N) loop or a Q-state Potts cluster, is solved in two dimensions. The dimension (f) over cap(theta) of the boundary set with local wedge angle theta is (f) over cap(theta) = pi/theta - 25-c/12 (pi-theta)(2)/theta(2 pi-theta), with c the central charge of the model. As a corollary, the dimensions D-EP of the external perimeter and D-H of the hull of a Potts cluster obey the duality equation (D-EP - 1)(D-H - 1) = 1/4. A related covariant MF spectrum is obtained for self-avoiding walks anchored at cluster boundaries.
引用
收藏
页码:1363 / 1367
页数:5
相关论文
共 26 条
[1]  
AHLFORS LV, 1973, TOPICS GEOMETRIC FUN
[2]   Path-crossing exponents and the external perimeter in 2D percolation [J].
Aizenman, M ;
Duplantier, B ;
Aharony, A .
PHYSICAL REVIEW LETTERS, 1999, 83 (07) :1359-1362
[3]  
Ball R. D., UNPUB
[4]   Critical exponents near a random fractal boundary [J].
Cardy, J .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1999, 32 (16) :L177-L182
[5]   DIFFUSION NEAR ABSORBING FRACTALS - HARMONIC MEASURE EXPONENTS FOR POLYMERS [J].
CATES, ME ;
WITTEN, TA .
PHYSICAL REVIEW A, 1987, 35 (04) :1809-1824
[6]   EXTENDED SCALING RELATIONS FOR THE MAGNETIC CRITICAL EXPONENTS OF THE POTTS-MODEL [J].
DENNIJS, M .
PHYSICAL REVIEW B, 1983, 27 (03) :1674-1679
[7]   Two-dimensional copolymers and exact conformal multifractality [J].
Duplantier, B .
PHYSICAL REVIEW LETTERS, 1999, 82 (05) :880-883
[8]   Harmonic measure exponents for two-dimensional percolation [J].
Duplantier, B .
PHYSICAL REVIEW LETTERS, 1999, 82 (20) :3940-3943
[10]   GEOMETRICAL CRITICAL PHENOMENA ON A RANDOM SURFACE OF ARBITRARY GENUS [J].
DUPLANTIER, B ;
KOSTOV, IK .
NUCLEAR PHYSICS B, 1990, 340 (2-3) :491-541