Weyl dynamical maps are fully classified via phase-space subgroups; convex mixing of eternally non-Markovian dephasing maps yields Markovian semigroups, and irreducible eternally non-Markovian examples exist for qutrits.
Siudzińska, Phys
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Qhronology is a Python package that simulates quantum closed timelike curves and quantum circuits for studying time-travel paradoxes.
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Convexity and non-Markovianity of Weyl Maps
Weyl dynamical maps are fully classified via phase-space subgroups; convex mixing of eternally non-Markovian dephasing maps yields Markovian semigroups, and irreducible eternally non-Markovian examples exist for qutrits.
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Qhronology: A Python package for studying quantum models of closed timelike curves
Qhronology is a Python package that simulates quantum closed timelike curves and quantum circuits for studying time-travel paradoxes.