Topological phase transition between non-high symmetry critical phases and curvature function renormalization group

Abstract

The interplay between topology and criticality has been a recent interest of study in condensed matter physics. A unique topological transition between certain critical phases has been observed as a consequence of the edge modes living at criticalities. In this work, we generalize this phenomenon by investigating possible transitions between critical phases which are non-high symmetry (non-HS) in nature. We find the triviality and non-triviality of these critical phases in terms of the decay length of the edge modes and also characterize them using the winding numbers. The distinct non-HS critical phases are separated by multicritical points with linear dispersion at which the winding number exhibits the quantized jump, indicating a change in the topology (number of edge modes) at the critical phases. Moreover, we reframe the scaling theory based on the curvature function, i.e. curvature function renormalization group method to efficiently address the non-HS criticalities and multicriticalities. Using this we identify the conventional topological transition between gapped phases through non-HS critical points, and also the unique topological transition between critical phases through multicritical points. The renormalization group flow, critical exponents, and correlation function of Wannier states enable the characterization of non-HS criticalities along with multicriticalities.

13 pages + supplementary (4 pages), 14 figures. Published version

References in corpus (8)

• Topological Quantum Matter with Ultracold Gases in Optical Lattices
• Kitaev chains with long-range pairing
• Topological characterizations of an extended Su-Schrieffer-Heeger model
• A Gapless Symmetry-Protected Topological Phase of Fermions in One Dimension
• Correlation Length, Universality Classes, and Scaling Laws Associated with Topological Phase Transitions
• Universality classes of topological phase transitions with higher-order band crossing
• Weyl-type topological phase transitions in fractional quantum Hall like systems
• Quench dynamics and scaling laws in topological nodal loop semimetals

Cited by in corpus (7)

• Universal entanglement spectrum in gapless symmetry protected topological states
• Quantum phase transition and critical behavior between the gapless topological phases
• Gapless higher-order topology and corner states in Floquet systems
• Topological physics in quantum critical systems
• Deconfined criticality as intrinsically gapless topological state in one dimension
• Scaling of Quantum Geometry Near the Non-Hermitian Topological Phase Transitions
• Topologically nontrivial multicritical points