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Chaos and Irreversibility: An introduction to the Loschmidt echo

Chaos and Irreversibility: An introduction to the Loschmidt echo. Diego A. Wisniacki. UBA. Overview. Introduction Loschmidt echo Loschmidt echo and chaos Regimes of Loschmidt echo Decoherence and Loschmidt echo Experiments Final Remarks. Colaboradores-Referencias. Colaborators.

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Chapters 11, 12

Chapters 11, 12. Stationary Perturbation Theory And Its Applications. 11.A.1. The eigenproblem Let us assume that we have a system with an ( unperturbed ) Hamiltonian H 0 , the eigenvalue problem for which is solved and the spectrum is discrete :

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Chapter 4

Chapter 4. Two-Level Systems, Spin. 4.C.1. Two-level systems Let us start with the simplest non-trivial state space, with only two dimensions Despite its simplicity, such space is a good approximation of many physical quantum systems, where all other energy levels could be ignored

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