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Title: Emergence of classical structures from the quantum vacuum

Abstract

After a quantum phase transition the quantum vacuum can break up to form classical topological defects. We examine this process for scalar field models with $$Z_2$$ symmetry for different quench rates for the phase transition. We find that the number density of kinks at late times universally scales as $$C m^{1/2} t^{-1/2}$$ where $m$ is a mass scale in the model and $$C\approx 0.22$$; it does not depend on the quench timescale in contrast to the Kibble-Zurek scaling for thermal phase transitions. Lastly, t subleading correction $$\propto t^{-3/2}$$ to the kink density depends on the details of the phase transition.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Arizona State Univ., Tempe, AZ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
OSTI Identifier:
1665898
Alternate Identifier(s):
OSTI ID: 1657812; OSTI ID: 1664380
Grant/Contract Number:  
SC0019470; PHY-1613708; PHY-2012195
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 102 Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Domain walls; Phase transitions; Spontaneous symmetry breaking

Citation Formats

Mukhopadhyay, Mainak, Vachaspati, Tanmay, and Zahariade, George. Emergence of classical structures from the quantum vacuum. United States: N. p., 2020. Web. https://doi.org/10.1103/PhysRevD.102.056021.
Mukhopadhyay, Mainak, Vachaspati, Tanmay, & Zahariade, George. Emergence of classical structures from the quantum vacuum. United States. https://doi.org/10.1103/PhysRevD.102.056021
Mukhopadhyay, Mainak, Vachaspati, Tanmay, and Zahariade, George. Thu . "Emergence of classical structures from the quantum vacuum". United States. https://doi.org/10.1103/PhysRevD.102.056021.
@article{osti_1665898,
title = {Emergence of classical structures from the quantum vacuum},
author = {Mukhopadhyay, Mainak and Vachaspati, Tanmay and Zahariade, George},
abstractNote = {After a quantum phase transition the quantum vacuum can break up to form classical topological defects. We examine this process for scalar field models with $Z_2$ symmetry for different quench rates for the phase transition. We find that the number density of kinks at late times universally scales as $C m^{1/2} t^{-1/2}$ where $m$ is a mass scale in the model and $C\approx 0.22$; it does not depend on the quench timescale in contrast to the Kibble-Zurek scaling for thermal phase transitions. Lastly, t subleading correction $\propto t^{-3/2}$ to the kink density depends on the details of the phase transition.},
doi = {10.1103/PhysRevD.102.056021},
journal = {Physical Review D},
number = 5,
volume = 102,
place = {United States},
year = {2020},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.102.056021

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