Simulation of vibrational dynamics using qubits and qudits
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Quantum Physics arXiv:2605.12866 (quant-ph) [Submitted on 13 May 2026] Title:Simulation of vibrational dynamics using qubits and qudits Authors:Erik Lötstedt, Kaoru Yamanouchi View a PDF of the paper titled Simulation of vibrational dynamics using qubits and qudits, by Erik L\"otstedt and Kaoru Yamanouchi View PDF HTML (experimental) Abstract:We investigate the quantum computing of the vibrational dynamics of CO$_2$ and H$_2$O by constructing the vibrational Hamiltonian in qubit and qudit form by two types of qubit encodings (binary and direct) and a qudit encoding. We simulate the time-dependent vibrational population transfer using the three different encodings, including the effect of noise and find that the qudit encoding leads to the most accurate results both for CO$_2$ and H$_2$O because of the small number of terms in the qudit Hamiltonian as long as the same values of the entangling gate error rates are adopted. Comments: Subjects: Quantum Physics (quant-ph) Report number: RIKEN-iTHEMS-Report-26 Cite as: arXiv:2605.12866 [quant-ph] (or arXiv:2605.12866v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2605.12866 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Erik Lötstedt [view email] [v1] Wed, 13 May 2026 01:22:22 UTC (310 KB) Full-text links: Access Paper: View a PDF of the paper titled Simulation of vibrational dynamics using qubits and qudits, by Erik L\"otstedt and Kaoru YamanouchiView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-05 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?) 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?)