Wyniki wyszukiwania dla: kwantowa dynamika

• Kwantowa dynamika procesu fotodysocjacji rodnika winoksylowego. Nieadiabatyczne efekty w pobliżu przecięcia stożka

  Publikacja

  • K. Piechowska-Strumik

  - Rok 2006

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• Dynamics of quantum entanglement

  Publikacja

  • K. Życzkowski
  • P. Horodecki
  • M. Horodecki
  • R. Horodecki

  - PHYSICAL REVIEW A - Rok 2002

  A model of discrete dynamics of entanglement of a bipartite quantum state is considered. It involves a global unitary dynamics of the system and periodic actions of local bistochastic or decaying channel. For initially pure states the decay of entanglement is accompanied by an increase of von Neumann entropy of the system. We observe and discuss revivals of entanglement due to unitary interaction of subsystems. For some mixed states...

• Dynamical description of quantum computing: generic nonlocality of quantumnoise

  Publikacja

  • R. Kalicki
  • M. Horodecki
  • P. Horodecki
  • R. Horodecki

  - PHYSICAL REVIEW A - Rok 2002

  We develop a dynamical non-Markovian description of quantum computing in the weak-coupling limit, in the lowest-order approximation. We show that the long-range memory of the quantum reservoir (such as the 1/t4 one exhibited by electromagnetic vacuum) produces a strong interrelation between the structure of noise and the quantum algorithm, implying nonlocal attacks of noise. This shows that the implicit assumption of quantum error...