Verifying quantum systems has attracted a lot of interests in the last decades. In this paper, we initialise the model checking of quantum continuous-time Markov chain (QCTMC). As a real-time system, we specify the temporal properties on QCTMC by signal temporal logic (STL). To effectively check the atomic propositions in STL, we develop a state-of-the-art real root isolation algorithm under Schanuel’s conjecture; further, we check the general STL formula by interval operations with a bottom-up fashion, whose query complexity turns out to be linear in the size of the input formula by calling the real root isolation algorithm. A running example of an open quantum walk is provided to demonstrate our method.
@InProceedings{xu_et_al:LIPIcs.CONCUR.2021.13, author = {Xu, Ming and Mei, Jingyi and Guan, Ji and Yu, Nengkun}, title = {{Model Checking Quantum Continuous-Time Markov Chains}}, booktitle = {32nd International Conference on Concurrency Theory (CONCUR 2021)}, pages = {13:1--13:17}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-203-7}, ISSN = {1868-8969}, year = {2021}, volume = {203}, editor = {Haddad, Serge and Varacca, Daniele}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2021.13}, URN = {urn:nbn:de:0030-drops-143908}, doi = {10.4230/LIPIcs.CONCUR.2021.13}, annote = {Keywords: Model Checking, Formal Logic, Quantum Computing, Computer Algebra} }
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