منابع مشابه
Point-to-set lengths, local structure, and glassiness.
The growing sluggishness of glass-forming liquids is thought to be accompanied by growing structural order. The nature of such order, however, remains hotly debated. A decade ago, point-to-set (PTS) correlation lengths were proposed as measures of amorphous order in glass formers, but recent results raise doubts as to their generality. Here, we extend the definition of PTS correlations to agnos...
متن کاملInterplay of topological order and spin glassiness in the toric code under random magnetic fields
Dimitris I. Tsomokos,1 Tobias J. Osborne,1,2 and Claudio Castelnovo3 1Department of Mathematics, Royal Holloway, University of London, Egham TW20 0EX, United Kingdom 2Wissenschaftskolleg zu Berlin, Wallotstraße 19, D-14193 Berlin, Germany 3Rudolf Peierls Centre for Theoretical Physics and Worcester College, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom (Received 29 December...
متن کاملFrustration and glassiness in spin models with cavity-mediated interactions.
We show that the effective spin-spin interaction between three-level atoms confined in a multimode optical cavity is long-ranged and sign changing, like the RKKY interaction; therefore, ensembles of such atoms subject to frozen-in positional randomness can realize spin systems having disordered and frustrated interactions. We argue that, whenever the atoms couple to sufficiently many cavity mod...
متن کاملGlassiness in a Model without Energy Barriers.
We propose a microscopic model without energy barriers in order to explain some generic features observed in structural glasses. The statics can be exactly solved while the dynamics has been clarified using Monte Carlo calculations. Although the model has no thermodynamic transition it captures some of the essential features of real glasses, i.e., extremely slow relaxation, time dependent hyste...
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ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2013
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2013.01.023