Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Heymans, G. O."'
We investigate the critical properties of continuous random field Ising model (RFIM). Using the distributional zeta-function method, we obtain a series representation for the quenched free energy. It is possible to show that for each moment of the pa
Externí odkaz:
http://arxiv.org/abs/2408.14184
Publikováno v:
Physical Review A 110, 042813 (2024)
We analyze the Casimir-Lifshitz effect associated with the electromagnetic field in the presence of a rectangular waveguide consisting of two distinct dielectric materials in a $(3+1)$-dimensional spacetime. We employ the surface mode technique to de
Externí odkaz:
http://arxiv.org/abs/2407.09729
We discuss the Bekenstein generalized entropy of a Schwarzschild black hole, with the contribution of an external matter field affected by degrees of freedom near the event horizon. In the Euclidean section of the Schwarzschild manifold, we consider
Externí odkaz:
http://arxiv.org/abs/2404.09923
Critical Casimir effect appears when critical fluctuations of an order parameter interact with classical boundaries. We investigate this effect in the setting of a Landau-Ginzburg model with continuous symmetry in the presence of quenched disorder. T
Externí odkaz:
http://arxiv.org/abs/2402.01588
We discuss the vacuum energy of a quantized scalar field in the presence of classical surfaces, defining bounded domains $\Omega \subset {\mathbb{R}}^{d}$, where the field satisfies ideal or non-ideal boundary conditions. For the electromagnetic case
Externí odkaz:
http://arxiv.org/abs/2307.10101
Using results of statistical field theory for systems with an anisotropic disorder, we present an analog model for Euclidean wormholes and topological fluctuation effects in a Riemannian space $\mathcal{M}^\mathrm{d}$. The contribution of wormholes a
Externí odkaz:
http://arxiv.org/abs/2305.07990
We discuss the Euclidean quantum $O(N)$ model with $N=2$ in a continuous broken symmetry phase. We study the system at low temperatures in the presence of quenched disorder linearly coupled to the scalar field. Performing an average over the ensemble
Externí odkaz:
http://arxiv.org/abs/2208.04445
Publikováno v:
Phys. Rev. D 106 (2022) 125004
We investigate the low temperature behavior of a system in a spontaneously broken symmetry phase described by an Euclidean quantum $\lambda\varphi^{4}_{d+1}$ model with quenched disorder. Using a series representation for the averaged generating func
Externí odkaz:
http://arxiv.org/abs/2207.06927
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