2018/11/30 by Tibra Ali, Arpan Bhattacharyya, S. Shajidul Haque +2 · 1 citation
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Entropy (arrow of time) #Multipartite entanglement #Physics #Quantum #Quantum entanglement #Quantum many-body systems #Quantum mechanics #Squashed entanglement #Statistical physics #Theoretical physics #Topological Materials and Phenomena #Topological entropy in physics #Topological order #Topological quantum number #Topology (electrical circuits) #cond-mat.stat-mech #cond-mat.str-el #hep-th #quant-ph
paper · pdf · doi:10.1016/j.physletb.2020.135919
published as Phys. Lett. B, 811 (2020),135919 · 24 pages, 6 figures, title and abstract slightly modified, updated version to appear in Physics Letters B
arxiv created 2020/10/31 · openalex publication_date 2020/11/05 · openalex created_date 2020/11/09 · arxiv updated 2020/11/13 · openalex updated_date 2026/08/05
We investigate the evolution of complexity and entanglement following a quench in a one-dimensional topological system, namely the Su-Schrieffer-Heeger model. We demonstrate that complexity can detect quantum phase transitions and shows signatures of revivals; this observation provides a practical advantage in information processing. We also show that the complexity saturates much faster than the entanglement entropy in this system, and we provide a physical argument for this. Finally, we demonstrate that complexity is a less sensitive probe of topological order, compared with measures of entanglement.