Abstract
Computer simulations of decoherence in quantum spin systems require the solution of the time-dependent Schrödinger equation for interacting quantum spin systems over extended periods of time. We use exact diagonalization, the Chebyshev polynomial technique, four Suzuki-formula algorithms, and the shortiterative-Lanczos method to solve a simple model for decoherence of a quantum spin system by an environment consisting of quantum spins, and compare advantages and limitations of different algorithms.
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De Raedt, H., Dobrovitski, V.V. (2004). Decoherence in Quantum Spin Systems. In: Landau, D.P., Lewis, S.P., Schüttler, HB. (eds) Computer Simulation Studies in Condensed-Matter Physics XVI. Springer Proceedings in Physics, vol 95. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59293-5_10
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DOI: https://doi.org/10.1007/978-3-642-59293-5_10
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