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Multiple many-body localization transitions in a driven non-Hermitian quasiperiodic chain
Sanchayan Banerjee, Ayan Banerjee, Tapan Mishra +1
We investigate the fate of a many-body localized phase in a non-Hermitian quasiperiodic model of hardcore bosons subjected to periodic driving. While in general, the many-body loca…
The analytically tractable zoo of similarity-induced exceptional structures
Anton Montag, Jordan Isaacs, Marcus Stålhammar +1
Exceptional points (EPs) are non-Hermitian spectral degeneracies marking a simultaneous coalescence of eigenvalues and eigenvectors. Despite the fact that multiband -fold EPs (E…
Fibonacci Waveguide Quantum Electrodynamics
Florian Bönsel, Flore K. Kunst, Federico Roccati
Waveguide quantum electrodynamics (QED) provides a powerful framework for engineering quantum interactions, traditionally relying on periodic photonic arrays with continuous energy…
Many-Body Neural Network Wavefunction for a Non-Hermitian Ising Chain
Lavoisier Wah, Remmy Zen, Flore K. Kunst
Non-Hermitian (NH) quantum systems have emerged as a powerful framework for describing open quantum systems, non-equilibrium dynamics, and engineered quantum optical materials. How…
Exceptional, but Separate: Precursors to Spontaneous Symmetry Breaking
Lewis Hill, Julius T. Gohsrich, Alekhya Ghosh +3
Spontaneous symmetry breaking (SSB) and exceptional points (EPs) are often assumed to be inherently linked. Here we investigate the intricate relationship between SSB and specific…