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An entropy-based, scale-dependent centrality

Autor: Schwengber, L. R., Prado, S. D., Dahmen, S. R.

In this article we introduce an entropy-based, scale-dependent centrality that is evaluated as the Shannon entropy of the distribution at time t of a continuous-time random walk. It ranks nodes as a function of the time t, which acts as a parameter a

Externí odkaz: http://arxiv.org/abs/2108.09248

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Gendered Networks and Communicability in Medieval Historical Narratives

Autor: Prado, S. D., Dahmen, S. R., Bazzan, A. L. C., MacCarron, M., Hillner, J.

Publikováno v: Advances in Complex Systems vol.23, no. 3, 2050006 (2020)

One of the defining representations of women from medieval times is in the role of peace-weaver, that is, a woman was expected to 'weave' peace between warring men. The underlying assumption in scholarship on this topic is that female mediation lesse

Externí odkaz: http://arxiv.org/abs/2002.01396

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Static Versus Dynamic Friction: The Role of Coherence

Autor: Farkas, Z., Dahmen, S. R., Wolf, D. E.

Publikováno v: J. Stat. Mech.: Theor. Exp. (2005) P06015

A simple model for solid friction is analyzed. It is based on tangential springs representing interlocked asperities of the surfaces in contact. Each spring is given a maximal strain according to a probability distribution. At their maximal strain th

Externí odkaz: http://arxiv.org/abs/cond-mat/0502644

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Magnetic Susceptibility of an integrable anisotropic spin ladder system

Autor: Tonel, A. P., Dahmen, S. R., Foerster, A., Malvezzi, A. L.

Publikováno v: EUROPHYSICS LETTERS 64 (1): 111-117 (2003)

We investigate the thermodynamics of a spin ladder model which possesses a free parameter besides the rung and leg couplings. The model is exactly solved by the Bethe Ansatz and exhibits a phase transition between a gapped and a gapless spin excitati

Externí odkaz: http://arxiv.org/abs/cond-mat/0302336

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A novel exponent in the Equilibrium Shape of Crystals

Autor: Dahmen, S. R., Wehefritz, B., Albertini, G.

A new exponent characterizing the rounding of crystal facets is found by mapping a crystal surface onto the asymmetric six-vertex model (i.e. with external fields h and v) and using the Bethe Ansatz to obtain appropriate expansions of the free energy

Externí odkaz: http://arxiv.org/abs/cond-mat/9802152

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