Results 41 to 50 of about 1,033,856 (318)

Phase transitions in single neurons and neural populations: Critical slowing, anesthesia, and sleep cycles [PDF]

open access: yes, 2010
The firing of an action potential by a biological neuron represents a dramatic transition from small-scale linear stochastics (subthreshold voltage fluctuations) to gross-scale nonlinear dynamics (birth of a 1-ms voltage spike). In populations of neurons
Steyn-Ross, Moira L.   +3 more
core   +1 more source

Molecular screening for solid–solid phase transition by machine learning [PDF]

open access: yes, 2022
Solid–solid phase transition is a mechanism manifesting and regulating functionalities in molecular crystals. The phase transitions are generally found by chance empirically, and screening molecules theoretically to predict their existence is challenging.
Toru, Asahi   +3 more
core   +1 more source

Modelling general anaesthesia as a first-order phase transition in the cortex [PDF]

open access: yes, 2004
Since 1997 we have been developing a theoretical foundation for general anaesthesia. We have been able to demonstrate that the abrupt change in brain state broughton by anaesthetic drugs can be characterized as a first-order phase transition in the ...
Moira L. Steyn-ross   +7 more
core   +1 more source

Cahn-Hilliard model with Schlögl reactions: interplay of equilibrium and non-equilibrium phase transitions. I. Travelling wave solutions

open access: yesCondensed Matter Physics, 2020
The present work is devoted to the modelling which is based on the modified Cahn-Hilliard equation, the interplay of equilibrium and non-equilibrium phase transitions.
P.O. Mchedlov-Petrosyan, L.N. Davydov
doaj   +1 more source

On the Douglas-Kazakov phase transition

open access: yesESAIM: Proceedings and Surveys, 2015
We give a rigorous proof of the fact that a phase transition discovered by Douglas and Kazakov in 1993 in the context of two-dimensional gauge theories occurs. This phase transition can be formulated in terms of the Brownian bridge on
Lévy Thierry, Maïda Mylène
doaj   +1 more source

Complexity, scaling, and a phase transition

open access: yesJournal of High Energy Physics, 2023
We investigate the holographic complexity of CFTs compactified on a circle with a Wilson line, dual to magnetized solitons in AdS4 and AdS5. These theories have a confinement-deconfinement phase transition as a function of the Wilson line, and the ...
Jiayue Yang, Andrew R. Frey
doaj   +1 more source

Phase Transitions in Phase Retrieval [PDF]

open access: yes, 2015
Consider a scenario in which an unknown signal is transformed by a known linear operator, and then the pointwise absolute value of the unknown output function is reported. This scenario appears in several applications, and the goal is to recover the unknown signal -- this is called phase retrieval. Phase retrieval has been a popular subject of research
openaire   +2 more sources

Axiogenesis from SU(2) R phase transition

open access: yesJournal of High Energy Physics, 2021
The baryon asymmetry of the universe may be explained by rotations of the QCD axion in field space and baryon number violating processes. We consider the minimal extension of the Standard Model by a non-Abelian gauge interaction, SU(2) R , whose ...
Keisuke Harigaya, Ruoquan Wang
doaj   +1 more source

Electroweak Phase Transitions [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
5 pages, Talk given at 17th International Symposium on Lattice Field Theory (LATTICE 99), Pisa, Italy, 29 Jun - 3 Jul ...
openaire   +2 more sources

Bifurcations of transition states : morse bifurcations [PDF]

open access: yes, 2014
A transition state for a Hamiltonian system is a closed, invariant, oriented, codimension-2 submanifold of an energy level that can be spanned by two compact codimension-1 surfaces of unidirectional flux whose union, called a dividing surface, locally ...
MacKay, Robert S., Strub, Dayal C.
core   +1 more source

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