Topological phase in plasma physics. (12th April 2021)

• Record Type: Journal Article
• Authors: Parker, Jeffrey B.
• Is Part Of: Journal of plasma physics. Volume 87:Number 2(2021)
• Publication Date: 2021-04-12
• Subjects: plasma waves; Plasma (Ionized gases) -- Periodicals; 530.4405
• DOI: 10.1017/S0022377821000301
• Languages: English
• ISSNs: 0022-3778

Abstract

Abstract : Recent discoveries have demonstrated that matter can be distinguished on the basis of topological considerations, giving rise to the concept of topological phase. Introduced originally in condensed matter physics, the physics of topological phase can also be fruitfully applied to plasmas. Here, the theory of topological phase is introduced, including a discussion of Berry phase, Berry connection, Berry curvature and Chern number. One of the clear physical manifestations of topological phase is the bulk-boundary correspondence, the existence of localized unidirectional modes at the interface between topologically distinct phases. These concepts are illustrated through examples, including the simple magnetized cold plasma. An outlook is provided for future theoretical developments and possible applications.