Subsystem complexity after a local quantum quench
From MaRDI portal
Publication:1980677
DOI10.1007/JHEP08(2021)135zbMATH Open1469.81052arXiv2106.08282OpenAlexW4206979751MaRDI QIDQ1980677
Author name not available (Why is that?)
Publication date: 8 September 2021
Published in: (Search for Journal in Brave)
Abstract: We study the temporal evolution of the circuit complexity after the local quench where two harmonic chains are suddenly joined, choosing the initial state as the reference state. We discuss numerical results for the complexity for the entire chain and the subsystem complexity for a block of consecutive sites, obtained by exploiting the Fisher information geometry of the covariance matrices. The qualitative behaviour of the temporal evolutions of the subsystem complexity depends on whether the joining point is inside the subsystem. The revivals and a logarithmic growth observed during these temporal evolutions are discussed. When the joining point is outside the subsystem, the temporal evolutions of the subsystem complexity and of the corresponding entanglement entropy are qualitatively similar.
Full work available at URL: https://arxiv.org/abs/2106.08282
No records found.
No records found.
This page was built for publication: Subsystem complexity after a local quantum quench
Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q1980677)
