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quant-ph2024
Quantum channels, complex Stiefel manifolds, and optimization
Ivan Russkikh, Boris Volkov, Alexander Pechen
Most general dynamics of an open quantum system is commonly represented by a quantum channel, which is a completely positive trace-preserving map (CPTP or Kraus map). Well-known re…
quant-ph2024
Phenomenon of a stronger trapping behaviour in -type quantum systems with symmetry
Boris Volkov, Anastasia Myachkova, Alexander Pechen
, , (ladder), and other three-level quantum systems with one forbidden transition (referred here as -type systems) play an important role in quantum physics. Various a…