Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders

We study the q-voter model driven by stochastic noise arising from one out of two types of nonconformity: anticonformity or independence. We compare two approaches that were inspired by the famous psychological controversy known as the person–situation debate. We relate the person approach with the...

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Main Authors: Arkadiusz Jędrzejewski, Katarzyna Sznajd-Weron
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/19/8/415
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author Arkadiusz Jędrzejewski
Katarzyna Sznajd-Weron
author_facet Arkadiusz Jędrzejewski
Katarzyna Sznajd-Weron
author_sort Arkadiusz Jędrzejewski
collection DOAJ
description We study the q-voter model driven by stochastic noise arising from one out of two types of nonconformity: anticonformity or independence. We compare two approaches that were inspired by the famous psychological controversy known as the person–situation debate. We relate the person approach with the quenched disorder and the situation approach with the annealed disorder, and investigate how these two approaches influence order–disorder phase transitions observed in the q-voter model with noise. We show that under a quenched disorder, differences between models with independence and anticonformity are weaker and only quantitative. In contrast, annealing has a much more profound impact on the system and leads to qualitative differences between models on a macroscopic level. Furthermore, only under an annealed disorder may the discontinuous phase transitions appear. It seems that freezing the agents’ behavior at the beginning of simulation—introducing quenched disorder—supports second-order phase transitions, whereas allowing agents to reverse their attitude in time—incorporating annealed disorder—supports discontinuous ones. We show that anticonformity is insensitive to the type of disorder, and in all cases it gives the same result. We precede our study with a short insight from statistical physics into annealed vs. quenched disorder and a brief review of these two approaches in models of opinion dynamics.
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spelling doaj.art-67a3c94cebe142fd81614578e9f9fa742022-12-22T04:04:07ZengMDPI AGEntropy1099-43002017-08-0119841510.3390/e19080415e19080415Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed DisordersArkadiusz Jędrzejewski0Katarzyna Sznajd-Weron1Department of Theoretical Physics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław 50370, PolandDepartment of Theoretical Physics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław 50370, PolandWe study the q-voter model driven by stochastic noise arising from one out of two types of nonconformity: anticonformity or independence. We compare two approaches that were inspired by the famous psychological controversy known as the person–situation debate. We relate the person approach with the quenched disorder and the situation approach with the annealed disorder, and investigate how these two approaches influence order–disorder phase transitions observed in the q-voter model with noise. We show that under a quenched disorder, differences between models with independence and anticonformity are weaker and only quantitative. In contrast, annealing has a much more profound impact on the system and leads to qualitative differences between models on a macroscopic level. Furthermore, only under an annealed disorder may the discontinuous phase transitions appear. It seems that freezing the agents’ behavior at the beginning of simulation—introducing quenched disorder—supports second-order phase transitions, whereas allowing agents to reverse their attitude in time—incorporating annealed disorder—supports discontinuous ones. We show that anticonformity is insensitive to the type of disorder, and in all cases it gives the same result. We precede our study with a short insight from statistical physics into annealed vs. quenched disorder and a brief review of these two approaches in models of opinion dynamics.https://www.mdpi.com/1099-4300/19/8/415phase transitionsdisordernonlinear voter modelopinion dynamics
spellingShingle Arkadiusz Jędrzejewski
Katarzyna Sznajd-Weron
Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
Entropy
phase transitions
disorder
nonlinear voter model
opinion dynamics
title Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
title_full Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
title_fullStr Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
title_full_unstemmed Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
title_short Person-Situation Debate Revisited: Phase Transitions with Quenched and Annealed Disorders
title_sort person situation debate revisited phase transitions with quenched and annealed disorders
topic phase transitions
disorder
nonlinear voter model
opinion dynamics
url https://www.mdpi.com/1099-4300/19/8/415
work_keys_str_mv AT arkadiuszjedrzejewski personsituationdebaterevisitedphasetransitionswithquenchedandannealeddisorders
AT katarzynasznajdweron personsituationdebaterevisitedphasetransitionswithquenchedandannealeddisorders