13 papers
Thermal avalanches in a quasiperiodic XXZ model
Paolo Molignini, Antonio Å trkalj
We study bath-induced thermalization in the many-body localized XXZ spin chain subjected to a quasiperiodic magnetic field. We engineer a thermal inclusion by setting the field str…
Quantum dynamical signatures of non-Hermitian boundary modes
Fan Yang, Maria Zelenayova, Paolo Molignini +1
The non-Hermitian bulk-boundary correspondence features an interplay between the non-Hermitian skin effect and anomalous boundary-mode behavior. Whereas the skin effect is known to…
Symmetry-Fractionalized Skin Effects in Non-Hermitian Luttinger Liquids
Christopher Ekman, Emil J. Bergholtz, Paolo Molignini
In one dimension, strongly correlated gapless systems are highly constrained due to conformal invariance, leading to the decoupling of low energy degrees of freedom corresponding t…
Stability and Decay of Macrovortices in Rotating Bose Gases Beyond Mean Field
Paolo Molignini, M. A. Caracanhas, V. S. Bagnato +1
We study the formation, stability, and decay of macrovortices in a rotating Bose gas confined by a Mexican-hat potential with a multiconfigurational ansatz. By systematically inclu…
Beyond-mean-field phases of rotating dipolar condensates
Paolo Molignini
Rotating dipolar Bose-Einstein condensates exhibit rich physics due to the interplay of long-range interactions and rotation, leading to unconventional vortex structures and strong…
Universality and Invariance in Hegselmann-Krause Opinion Dynamics: Proof of Three Conjectures
Paolo Molignini
Three conjectures from [R. Hegselmann, The Journal of Artificial Societies and Social Simulations 26(4), 11 (2023)] about the Hegselmann-Krause opinion dynamics and the structure o…