Dear Colleagues,

This Special Issue of the Condensed Matter journal is dedicated to Complexity in Quantum Materials collecting the papers presented at the K. Alex Müller Workshop held in Erice-Sicily August 3-9, 2023, and related matter. The topics cover in advances in understanding the key role of quantum complexity and intrinsic role of heterogeneity in unconventional quantum functionalities in condensed matter made of multiple chemical and electronic components at the nanoscale. The topics cover studies on first order structural phase transitions with emerging chemical nanoscale phase separation, dynamics of non-linear systems, Rashba spin–orbit coupling at interfaces in low dimension, pseudo Jahn Teller polarons, Majorana fermions, Majorana exchange interaction, unconventional electron–phonon interaction, electronic inhomogeneities, polarons condensation and pairing, symmetry and heterogeneity, superstripes, multi-condensates, BEC-BCS crossover, topological materials, ferroelectrics, perovskites and ultracold gases artificial quantum heterostructures, artificial cuprate superlattices, multi band superconductivity, the 3D superconductivity dome in cuprates driven by strain and doping, the unconventional superconductivity dome due to Fano Feshbach resonances near Lifshitz transitions, and complexity in the physics of Li-ion batteries and room temperature superconductors.

Prof. Dr. Antonio Bianconi
Prof. Dr. Annette Bussmann-Holder
Guest Editors

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