Communications in Mathematical Physics

, Volume 360, Issue 2, pp 715–726 | Cite as

Decay of Complex-Time Determinantal and Pfaffian Correlation Functionals in Lattices

  • N. J. B. Aza
  • J.-B. Bru
  • W. de Siqueira Pedra


We supplement the determinantal and Pfaffian bounds of Sims and Warzel (Commun Math Phys 347:903–931, 2016) for many-body localization of quasi-free fermions, by considering the high dimensional case and complex-time correlations. Our proof uses the analyticity of correlation functions via the Hadamard three-line theorem. We show that the dynamical localization for the one-particle system yields the dynamical localization for the many-point fermionic correlation functions, with respect to the Hausdorff distance in the determinantal case. In Sims and Warzel (2016), a stronger notion of decay for many-particle configurations was used but only at dimension one and for real times. Considering determinantal and Pfaffian correlation functionals for complex times is important in the study of weakly interacting fermions.


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© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • N. J. B. Aza
    • 1
  • J.-B. Bru
    • 2
    • 3
    • 4
  • W. de Siqueira Pedra
    • 1
  1. 1.Institute of Physics of the University of São PauloSão PauloBrazil
  2. 2.Departamento de Matemáticas, Facultad de Ciencia y TecnologíaUniversidad del País VascoBilbaoSpain
  3. 3.BCAM - Basque Center for Applied MathematicsBilbaoSpain
  4. 4.IKERBASQUE, Basque Foundation for ScienceBilbaoSpain

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