Results 21 to 30 of about 95 (95)
, 2015 Several quantum critical compounds have been argued to have multiple instabilities towards orders with distinct dynamical exponents. We present an analysis of a quantum multicritical point in an itinerant magnet with competition between ferro- and antiferromagnetic order, modelled using Hertz-Millis theory.
Oliver, G. T., Schofield, A. J.
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Quantum multicriticality in disordered Weyl semimetals [PDF]
Physical Review B, 2018 In electronic band structure of solid state material, two band touching points with linear dispersion appear in pair in the momentum space. When they annihilate with each other, the system undergoes a quantum phase transition from three-dimensional Weyl semimetal (WSM) phase to a band insulator phase such as Chern band insulator (CI) phase.
Luo, Xunlong +3 more
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Multicritical random partitions
, 2020 12 pages, 3 figures (v2: minor modifications and clarifications).
Betea, Dan +2 more
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Multicritical behaviour of the diluted contact process [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2007 We study a contact process on a two-dimensional square lattice which is diluted by randomly removing bonds with probability p. For p<1/2 and varying birth rate $λ$ the model was shown to exhibit a continuous phase transition which belongs to the universality class of strongly disordered directed percolation. The phase transition line terminates in a
Dahmen, Silvio R. +2 more
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Canadian Geographer / Le géographe canadien, Volume 68, Issue 1, Page 101-114, Spring / printemps 2024.ABSTRACT When it comes to making planning and development decisions, the concepts of small, medium‐sized, or large cities are sometimes used to adapt public policies and instruments, or even to highlight challenges that are specific to certain categories of city. In this article, we take a look at the various dimensions that can be used to characterize
Michel Rochefort +3 more
wiley +1 more source
Horizon scanning: Tools to identify emerging threats to plant health in a changing world
EPPO Bulletin, Volume 54, Issue S1, Page 73-88, March 2024.Abstract In the context of risk analysis, horizon scanning activity is a necessary component of any foresight process. This applies also to the specific context of biological invasions, supported and accelerated by climate change and global trade. Today, various institutions and research centres are equipped with a set of tools and methods for early ...
A. Antoniou +13 more
wiley +1 more source
Multicritical Behavior in Coupled Directed Percolation Processes [PDF]
Physical Review Letters, 1998 5 pages, RevTex, no figures; final version, to appear in Phys. Rev. Lett. (1998)
Täuber, U., Howard, M., Hinrichsen, H.
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Journal of Social Issues, Volume 80, Issue 1, Page 18-52, March 2024.Abstract Recently there has been an uptake in the call for research that explores race and racism within the context of psychology. Researchers can use Critical Race Theory (CRT) to do so. However, scholars within the field of psychology may confront growing pains when integrating psychology research with CRT due to their respective inquiry worldviews ...
Korinthia D. Nicolai +4 more
wiley +1 more source
Multicritical points and reentrant phenomenon in the BEG model [PDF]
Physica A: Statistical Mechanics and its Applications, 1992 The Blume - Emery - Griffiths model is investigated by use of the cluster variation method in the pair approximation. We determine the regions of the phase space where reentrant phenomenon takes place. Two regions are found, depending on the sign of the reduced quadrupole - quadrupole coupling strength $ξ$.
BUZANO, Carla, PELIZZOLA, ALESSANDRO
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Remarks on the multicritical topologies in the n=? limit
Journal de Physique I, 1991 We show that phase diagrams involving the condensation of two vectorial order parameters in the limit n=∞ (n = number of components of the vectors) coupled only to quartic order exhibit an unexpectedly large variety of topologically distinct cases.
Prost, Jacques, Pommier, Jérôme
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