Quantum backflow in biased tight-binding systems

Quantum Physics arXiv:2511.16867 (quant-ph) [Submitted on 21 Nov 2025] Title:Quantum backflow in biased tight-binding systems Authors:Francisco Ricardo Torres Arvizu, Adrián Ortega, Hernán Larralde View a PDF of the paper titled Quantum backflow in biased tight-binding systems, by Francisco Ricardo Torres Arvizu and 2 other authors View PDF HTML (experimental) Abstract:We study the phenomenon of quantum backflow in tight-binding systems with complex couplings, considering different boundary conditions and lattice sizes. Backflow is an intrinsically non-classical effect where the density flux associated with a particle described by the superposition of wave functions with, say, positive momentum, acquires negative values. We calculate the superposition of positive momentum states that gives rise to the strongest backflow in the systems. We also evaluate the bounds on the total amount of probability that flows in the opposite direction of the particle's momentum. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2511.16867 [quant-ph] (or arXiv:2511.16867v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2511.16867 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Francisco Ricardo Torres Arvizu [view email] [v1] Fri, 21 Nov 2025 00:23:21 UTC (1,192 KB) Full-text links: Access Paper: View a PDF of the paper titled Quantum backflow in biased tight-binding systems, by Francisco Ricardo Torres Arvizu and 2 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-11 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)