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Title: From Complexification to Self-Similarity: New Aspects of Quantum Criticality
Abstract Quantum phase transitions are a fascinating area of condensed matter physics. The extension through complexification not only broadens the scope of this field but also offers a new framework for understanding criticality and its statistical implications. This mini review provides a concise overview of recent developments in complexification, primarily covering finite temperature and equilibrium quantum phase transitions, as well as their connection with dynamical quantum phase transitions and non-Hermitian physics, with a particular focus on the significance of Fisher zeros. Starting from the newly discovered self-similarity phenomenon associated with complex partition functions, we further discuss research on self-similar systems briefly. Finally, we offer a perspective on these aspects.  more » « less
Award ID(s):
2308617
PAR ID:
10608031
Author(s) / Creator(s):
; ;
Publisher / Repository:
Chinese Physical Society
Date Published:
Journal Name:
Chinese Physics Letters
Volume:
41
Issue:
10
ISSN:
0256-307X
Page Range / eLocation ID:
100501
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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