M
Marko Znidaric
Researcher at University of Ljubljana
Publications - 44
Citations - 1583
Marko Znidaric is an academic researcher from University of Ljubljana. The author has contributed to research in topics: Quantum entanglement & Quantum dynamics. The author has an hindex of 19, co-authored 43 publications receiving 1491 citations.
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Dynamics of Loschmidt echoes and fidelity decay
TL;DR: In this article, the authors present a review of different regimes for fidelity decay in quantum information processes, and give the theory that supports them, and show some important applications and experiments, using time correlation functions as a backbone for the discussion.
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Matrix product simulations of non-equilibrium steady states of quantum spin chains
Tomaz Prosen,Marko Znidaric +1 more
TL;DR: In this paper, a time-dependent density matrix renormalization group method with a matrix product ansatz is employed for explicit computation of non-equilibrium steady state density operators of several integrable and non-integrable quantum spin chains, which are driven far from equilibrium by means of Markovian couplings to external baths at the two ends.
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Stability of quantum motion and correlation decay
Tomaz Prosen,Marko Znidaric +1 more
TL;DR: In this paper, the authors derived a relation between the fidelity of quantum motion, characterizing the stability of quantum dynamics with respect to arbitrary static perturbation of the unitary evolution propagator, and the integrated time auto-correlation function of the generator.
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Dephasing-induced diffusive transport in anisotropic Heisenberg model
TL;DR: In this paper, transport properties of anisotropic Heisenberg model in a disordered magnetic field experiencing dephasing due to external degrees of freedom are studied, and it is shown that the presence of dephases induces normal diffusive transport in a wide range of parameters.
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Fidelity and purity decay in weakly coupled composite systems
Marko Znidaric,Tomaz Prosen +1 more
TL;DR: In this paper, the stability of unitary quantum dynamics of composite systems with respect to weak interaction between the two parts is studied and a linear response theory is developed expressing these three quantities in terms of time correlation functions of the generator of interaction.