Spectrum of the Dirac operator coupled to two-dimensional quantum gravity

Bogacz L, Burda Z, Petersen C, Petersson B (2002)
NUCLEAR PHYSICS B 630(1-2): 339-358.

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We implement fermions on dynamical random triangulation and determine numerically the spectrum of the Dirac-Wilson operator D for the system of Majorana fermions coupled to two-dimensional Euclidean quantum gravity. We study the dependence of the spectrum of the operator c D on the hopping parameter. We find that the distributions of the lowest eigenvalues become discrete when the hopping parameter approaches the value 1/root3. We show that this phenomenon is related to the behavior of the system in the 'antiferromagnetic' phase of the corresponding Ising model. Using finite size analysis we determine critical exponents controlling the scaling of the lowest eigenvalue of the spectrum including the Hausdorff dimension d(H) and the exponent kappa which tells us how fast the pseudo-critical value of the hopping parameter approaches its infinite volume limit. (C) 2002 Elsevier Science B.V. All rights reserved.
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Bogacz L, Burda Z, Petersen C, Petersson B. Spectrum of the Dirac operator coupled to two-dimensional quantum gravity. NUCLEAR PHYSICS B. 2002;630(1-2):339-358.
Bogacz, L., Burda, Z., Petersen, C., & Petersson, B. (2002). Spectrum of the Dirac operator coupled to two-dimensional quantum gravity. NUCLEAR PHYSICS B, 630(1-2), 339-358.
Bogacz, L., Burda, Z., Petersen, C., and Petersson, B. (2002). Spectrum of the Dirac operator coupled to two-dimensional quantum gravity. NUCLEAR PHYSICS B 630, 339-358.
Bogacz, L., et al., 2002. Spectrum of the Dirac operator coupled to two-dimensional quantum gravity. NUCLEAR PHYSICS B, 630(1-2), p 339-358.
L. Bogacz, et al., “Spectrum of the Dirac operator coupled to two-dimensional quantum gravity”, NUCLEAR PHYSICS B, vol. 630, 2002, pp. 339-358.
Bogacz, L., Burda, Z., Petersen, C., Petersson, B.: Spectrum of the Dirac operator coupled to two-dimensional quantum gravity. NUCLEAR PHYSICS B. 630, 339-358 (2002).
Bogacz, L, Burda, Z, Petersen, C, and Petersson, Bengt. “Spectrum of the Dirac operator coupled to two-dimensional quantum gravity”. NUCLEAR PHYSICS B 630.1-2 (2002): 339-358.
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