Back Cover: From Quantum Rabi Model To Jaynes–Cummings Model: Symmetry‐Breaking Quantum Phase Transitions, Symmetry‐Protected Topological Transitions and Multicriticality (Adv. Quantum Technol. 1/2022). Issue 1 (4th January 2022)

• Record Type: Journal Article
• Authors: Ying, Zu‐Jian
• Is Part Of: Advanced quantum technologies. Volume 5:Issue 1(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-04
• Subjects: Quantum theory -- Periodicals; Quantum computing -- Periodicals; Quantum chemistry -- Periodicals; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1002/qute.202270013
• Languages: English
• ISSNs: 2511-9044

Abstract

Abstract : Traditionally topological phase transitions lie in condensed matter, are they possible to occur in a single‐qubit system? Are universality and diversity foes or friends? In article number 2100088, Zu‐Jian Ying illuminates a fine‐structure phase diagram for the anisotropic quantum Rabi model with a finding of series transitions, multicriticality, and quadruple points emerging beyond the conventional picture. The emerging transitions are found to be topological transitions. The topological feature of the wave function provides a new universality classification reformed among the diversity in the breaking down of the conventional universality.