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The problem of transmitting a quantum state (known or unknown) from one place to another is of great interest in this context. In this work, by following the recent theoretical proposal, we study an application of quantum state-dependent pre- and post-processing unitary operations for protecting the given (multi-qubit) quantum state against the effect of decoherence acting on all qubits. We observe the increase in the fidelity of the output quantum state both in a quantum emulation experiment, where all protecting unitaries are perfect, and in a real experiment with a cloud-accessible quantum processor, where protecting unitaries themselves are affected by the noise. We expect the considered approach to be useful for analyzing capabilities of quantum information processing devices in transmitting known quantum states. We also demonstrate the applicability of the developed approach for suppressing decoherence in the process of distributing a two-qubit state over remote physical qubits of a quantum processor.<\/jats:p>","DOI":"10.3390\/e25010067","type":"journal-article","created":{"date-parts":[[2023,1,2]],"date-time":"2023-01-02T04:07:09Z","timestamp":1672632429000},"page":"67","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Suppressing Decoherence in Quantum State Transfer with Unitary Operations"],"prefix":"10.3390","volume":"25","author":[{"given":"Maxim A.","family":"Gavreev","sequence":"first","affiliation":[{"name":"Russian Quantum Center, Skolkovo, Moscow 143025, Russia"},{"name":"National University of Science and Technology \u201cMISIS\u201d, Moscow 119049, Russia"}]},{"given":"Evgeniy O.","family":"Kiktenko","sequence":"additional","affiliation":[{"name":"Russian Quantum Center, Skolkovo, Moscow 143025, Russia"},{"name":"National University of Science and Technology \u201cMISIS\u201d, Moscow 119049, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1268-4257","authenticated-orcid":false,"given":"Alena S.","family":"Mastiukova","sequence":"additional","affiliation":[{"name":"Russian Quantum Center, Skolkovo, Moscow 143025, Russia"},{"name":"National University of Science and Technology \u201cMISIS\u201d, Moscow 119049, Russia"}]},{"given":"Aleksey K.","family":"Fedorov","sequence":"additional","affiliation":[{"name":"Russian Quantum Center, Skolkovo, Moscow 143025, Russia"},{"name":"National University of Science and Technology \u201cMISIS\u201d, Moscow 119049, Russia"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"eaam9288","DOI":"10.1126\/science.aam9288","article-title":"Quantum internet: A vision for the road ahead","volume":"362","author":"Wehner","year":"2018","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"15023","DOI":"10.1038\/npjqi.2015.23","article-title":"Quantum algorithms: An overview","volume":"2","author":"Montanaro","year":"2016","journal-title":"Npj Quantum Inf."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1038\/nature23458","article-title":"Quantum computational supremacy","volume":"549","author":"Harrow","year":"2017","journal-title":"Nature"},{"key":"ref_4","unstructured":"Fedorov, A.K., Gisin, N., Beloussov, S.M., and Lvovsky, A.I. 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