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Creators/Authors contains: "Matsen, Mark W"

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  1. ; ; ; (, Macromolecules)
    The behavior of complex-Langevin field-theoretic simulations (CL-FTSs) of polymer liquids is sensitive to the nature of saddle-point field configurations, which are solutions of self-consistent field theory (SCFT). Recent work [Kang et al. Macromolecules 2024, 57, 3850] has shown that SCFT saddle-points with real fields are generally not isolated solutions but rather members of a low-dimensional family of continuously-connected complex-valued saddle-points sharing the same Hamiltonian value. We show that this behavior is a natural consequence of the analyticity and translational invariance of the Hamiltonian, which together demand its invariance under generalized translations by displacements with complex components. We also present a numerical algorithm that minimizes the deleterious effects of this generalized symmetry on the stability of CL-FTSs. 
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  2. ; (, Macromolecules)
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  3. ; (, Physical Review Letters)
  4. ; (, Macromolecules)
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  5. ; ; (, Macromolecules)
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  6. ; ; ; ; ; (, ACS Nano)