SciPost Submission Page
On symmetry-resolved generalized entropies
by Fei Yan, Sara Murciano, Pasquale Calabrese, Robert Konik
Submission summary
| Authors (as registered SciPost users): | Sara Murciano · Fei Yan |
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| Preprint Link: | https://arxiv.org/abs/2412.14165v2 (pdf) |
| Date accepted: | June 10, 2025 |
| Date submitted: | May 22, 2025, 4:27 a.m. |
| Submitted by: | Fei Yan |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
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Abstract
Symmetry-resolved entanglement, capturing the refined structure of quantum entanglement in systems with global symmetries, has attracted a lot of attention recently. In this manuscript, introducing the notion of symmetry-resolved generalized entropies, we aim to develop a computational framework suitable for the study of excited state symmetry-resolved entanglement as well as the dynamical evolution of symmetry-resolved entanglement in symmetry-preserving out-of-equilibrium settings. We illustrate our framework using the example of (1+1)-d free massless compact boson theory, and benchmark our results using lattice computation in the XX chain. As a byproduct, our computational framework also provides access to the probability distribution of the symmetry charge contained within a subsystem and the corresponding full counting statistics.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Published as SciPost Phys. 18, 211 (2025)