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Zhou, HJ![]() | |
Kinked Entropy and Discontinuous Microcanonical Spontaneous Symmetry Breaking | |
Source Publication | PHYSICAL REVIEW LETTERS
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Language | 英语 |
Keyword | DROPLETS |
Abstract | Spontaneous symmetry breaking (SSB) in statistical physics is a macroscopic collective phenomenon. For the paradigmatic Q-state Potts model it means a transition from the disordered color-symmetric phase to an ordered phase in which one color dominates. Existing mean field theories imply that SSB in the microcanonical statistical ensemble (with energy being the control parameter) should be a continuous process. Here we study microcanonical SSB on the random-graph Potts model and discover that the entropy is a kinked function of energy. This kink leads to a discontinuous phase transition at certain energy density value, characterized by a jump in the density of the dominant color and a jump in the microcanonical temperature. This discontinuous SSB in random graphs is confirmed by microcanonical Monte Carlo simulations, and it is also observed in bond-diluted finite-size lattice systems. |
2019 | |
ISSN | 0031-9007 |
Volume | 122Issue:16Pages:160601 |
Subject Area | Physics |
MOST Discipline Catalogue | Physics, Multidisciplinary |
DOI | 10.1103/PhysRevLett.122.160601 |
Indexed By | SCIE |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/23447 |
Collection | SCI期刊论文 计算平台成果 |
Affiliation | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Zhou, HJ. Kinked Entropy and Discontinuous Microcanonical Spontaneous Symmetry Breaking[J]. PHYSICAL REVIEW LETTERS,2019,122(16):160601. |
APA | Zhou, HJ.(2019).Kinked Entropy and Discontinuous Microcanonical Spontaneous Symmetry Breaking.PHYSICAL REVIEW LETTERS,122(16),160601. |
MLA | Zhou, HJ."Kinked Entropy and Discontinuous Microcanonical Spontaneous Symmetry Breaking".PHYSICAL REVIEW LETTERS 122.16(2019):160601. |
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Kinked Entropy and D(295KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | Application Full Text |
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