Exact Finite Size Corrections for the Ising Model on Planar Random Surfaces

1997 ◽  
Vol 12 (33) ◽  
pp. 2503-2509
Author(s):  
B. E. Hanlon

The exact form of finite size corrections is determined for the Ising model on 2-D planar random surfaces for any Ising temperature. The behaviour of these in the context of reliably extracting meaningful values for observables from numerical studies is investigated. In particular, it is noted that the leading order correction need not dominate.

1996 ◽  
Vol 368 (1-2) ◽  
pp. 55-63 ◽  
Author(s):  
N.D. Hari Dass ◽  
B.E. Hanlon ◽  
T. Yukawa

2020 ◽  
Vol 2020 (8) ◽  
Author(s):  
Dimitrios Zoakos

Abstract We study finite size corrections to the semiclassical string solutions of the Schrödinger spacetime. We compute the leading order exponential corrections to the infinite size dispersion relation of the single spin giant magnon and of the single spin single spike solutions. The solutions live in a S3 subspace of the five-sphere and extent in the Schrödinger part of the metric. In the limit of zero deformation the finite size dispersion relations flow to the undeformed AdS5 × S5 counterparts and in the infinite size limit the correction term vanishes and the known infinite size dispersion relations are obtained.


2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
Gustav Uhre Jakobsen ◽  
Gustav Mogull ◽  
Jan Plefka ◽  
Jan Steinhoff

Abstract Picture yourself in the wave zone of a gravitational scattering event of two massive, spinning compact bodies (black holes, neutron stars or stars). We show that this system of genuine astrophysical interest enjoys a hidden $$ \mathcal{N} $$ N = 2 supersymmetry, at least to the order of spin-squared (quadrupole) interactions in arbitrary D spacetime dimensions. Using the $$ \mathcal{N} $$ N = 2 supersymmetric worldline action, augmented by finite-size corrections for the non-Kerr black hole case, we build a quadratic-in-spin extension to the worldline quantum field theory (WQFT) formalism introduced in our previous work, and calculate the two bodies’ deflection and spin kick to sub-leading order in the post-Minkowskian expansion in Newton’s constant G. For spins aligned to the normal vector of the scattering plane we also obtain the scattering angle. All D-dimensional observables are derived from an eikonal phase given as the free energy of the WQFT that is invariant under the $$ \mathcal{N} $$ N = 2 supersymmetry transformations.


2017 ◽  
Vol 26 (3) ◽  
pp. 165-171 ◽  
Author(s):  
I. M. Karandashev ◽  
B. V. Kryzhanovsky ◽  
M. Yu. Malsagov

Sign in / Sign up

Export Citation Format

Share Document