Quantum potential in covariant quantum mechanics
Sign Up to like & getrecommendations! Published in 2017 at "Differential Geometry and Its Applications"
DOI: 10.1016/j.difgeo.2017.03.021
Abstract: V clanku jsou diskutovany otazky kolem klasickeho kvantoveho potencialu,který vystupuje v kovariantni kvantove mechanice. Konkretně je srovnan potencial prostorocasove konexe s potencialem kosymplekticke fazove 2-formy a s puotencialem kvantovke konexe. Dale je diskutovan specialni pozorovatel… read more here.
Keywords: potential covariant; quantum mechanics; covariant quantum; quantum potential ... See more keywords
Optimal covariant quantum measurements
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/abe752
Abstract: We discuss symmetric quantum measurements and the associated covariant observables modelled, respectively, as instruments and positive-operator-valued measures. The emphasis of this work are the optimality properties of the measurements, namely, extremality, informational completeness, and the… read more here.
Keywords: work; quantum; optimal covariant; quantum measurements ... See more keywords
Covariant Quantum Error-Correcting Codes with Metrological Entanglement Advantage.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/dttc-ksdn
Abstract: We show that a subset of the basis for the irreducible representations of a tensor-product SU(2) rotation forms a covariant approximate quantum error-correcting code with transversal U(1) logical gates. Generalizing previous work on "thermodynamic codes"… read more here.
Keywords: correcting codes; covariant quantum; error correcting; quantum error ... See more keywords