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dc.contributor.authorSmoliński, Kordian
dc.contributor.authorRembieliński, Jakub
dc.contributor.authorCaban, Paweł
dc.contributor.authorKhrapko, Sviatoslav
dc.identifier.citationRembieliński, J., Caban, P., Smoliński, K.A. et al. Lorentz-covariant, unitary evolution of a relativistic Majorana qubit. Quantum Inf Process 17, 262 (2018).
dc.description.abstractWe formulate a covariant description of a relativistic qubit identified with an irreducible set of quantum spin states of a Majorana particle with a sharp momentum. We treat the particle’s four-momentum as an external parameter. We show that it is possible to define an interesting time evolution of the spin density matrix of such a qubit. This evolution is manifestly Lorentz covariant in the bispinor representation and unitary in the spin representation. Moreover, during this evolution the Majorana particle undergoes an uniformly accelerated motion. We classify possible types of such motions, and finally we illustrate the behaviour of the polarization vector of the Majorana qubit during the evolution in some special cases.pl_PL
dc.publisherSpringer Naturepl_PL
dc.relation.ispartofseriesQuantum Information Processing;17
dc.rightsUznanie autorstwa 4.0 Międzynarodowe*
dc.subjectrelativistic qubitpl_PL
dc.subjectrelativistic quantum information theorypl_PL
dc.subjectLorentz-covariant evolutionpl_PL
dc.titleLorentz-covariant, unitary evolution of a relativistic Majorana qubitpl_PL
dc.contributor.authorAffiliationDepartment of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodzpl_PL
dc.contributor.authorAffiliationDepartment of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodzpl_PL
dc.contributor.authorAffiliationDepartment of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodzpl_PL
dc.contributor.authorAffiliationYuriy Fedkovych Chernivtsi National University, Chernivtsi, Ukrainepl_PL
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dc.disciplinenauki fizycznepl_PL

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Uznanie autorstwa 4.0 Międzynarodowe
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