ListarMAT_Articles por tema "Quantum mechanics"

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    • openAccess   A pedagogical approach to the Magnus expansion 

      Blanes, Sergio; Casas, Fernando; Oteo, J. A.; Ros, J. Institute of Physics (2010-07)
      Time-dependent perturbation theory as a tool to compute approximate solutions of the Schrödinger equation does not preserve unitarity. Here we present, in a simple way, how the Magnus expansion (also known as exponential ...