Phenomenology of Many-Body Localization in Bond-Disordered Spin Chains
Many-body localization (MBL) hinders the thermalization of quantum many-body systems in the presence of strong disorder. In this Letter, we study the MBL regime in bond-disordered spin-1/2 XXZ spin chain, finding the multimodal distribution of entanglement entropy in eigenstates, sub-Poissonian level statistics, and revealing a relation between operators and initial states required for examining the breakdown of thermalization in the time evolution of the system. We employ a real space renormalization group scheme to identify these phenomenological features of the MBL regime that extend beyond the standard picture of local integrals of motion relevant for systems with disorder coupled to on-site operators. Our results pave the way for experimental probing of MBL in bond-disordered spin chains.
Authors
- Piotr Sierant (ORCID: https://orcid.org/0000-0001-9219-7274)
- Maciej Lewenstein (ORCID: https://orcid.org/0000-0002-0210-7800)
- Jakub Zakrzewski (ORCID: https://orcid.org/0000-0003-0998-9460)
- Adith Sai Aramthottil (ORCID: https://orcid.org/0000-0002-4776-1523)
Institutions
- Institució Catalana de Recerca i Estudis Avançats (ES)
- Jagiellonian University (PL)
- Institute of Photonic Sciences (ES)
- Barcelona Institute of Science and Technology (ES)
- Institute of Science and Technology
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-11-08
- DOI
- https://doi.org/10.1103/physrevlett.133.196302
- Citations
- 4
- Primary Topic
- Quantum many-body systems
- Type
- article
- Field-Weighted Citation Impact
- 1.35
Funders
- Fundación Cellex
- “la Caixa” Foundation
- Centres de Recerca de Catalunya
- Institut de Ciències Fotòniques
- European Commission
- Generalitat de Catalunya
- Narodowe Centrum Nauki
- Narodowym Centrum Nauki
- Ministerio de Ciencia e Innovación
- Barcelona Supercomputing Center
- QuantERA
- European Climate, Infrastructure and Environment Executive Agency
- FUNDACIÓ Privada MIR-PUIG
- Horizon 2020 Framework Programme
- HORIZON EUROPE Framework Programme
- Agència de Gestió d'Ajuts Universitaris i de Recerca
- European Regional Development Fund
- Agencia Estatal de Investigación
- H2020 European Research Council
- H2020 Future and Emerging Technologies
- H2020 Marie Skłodowska-Curie Actions