Abstract
We establish bounds on the decay of time-dependent multipoint correlation functionals of one-dimensional quasi-free fermions in terms of the decay properties of their two-point function. At a technical level, this is done with the help of bounds on certain bordered determinants and pfaffians. These bounds, which we prove, go beyond the well-known Hadamard estimates. Our main application of these results is a proof of strong (exponential) dynamical localization of spin-correlation functions in disordered XY-spin chains.
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27 June 2018
On the occasion of the extension of part of our results to complex
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Communicated by M. Salmhofer
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Sims, R., Warzel, S. Decay of Determinantal and Pfaffian Correlation Functionals in One-Dimensional Lattices. Commun. Math. Phys. 347, 903–931 (2016). https://doi.org/10.1007/s00220-016-2612-0
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DOI: https://doi.org/10.1007/s00220-016-2612-0