Oscar Arandes

ORCID: 0000-0003-4351-3511
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About
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Research Areas
  • Quantum Mechanics and Non-Hermitian Physics
  • Quantum chaos and dynamical systems
  • Photonic and Optical Devices
  • Quantum, superfluid, helium dynamics
  • Neural Networks and Reservoir Computing
  • Mechanical and Optical Resonators
  • Nonlinear Photonic Systems

Stockholm University
2023-2025

AlbaNova
2023

We explore anomalous skin effects at non-Hermitian impurities by studying their interplay with potential disorder and exactly solving a minimal lattice model. A striking feature of the solvable single-impurity model is that presence anisotropic hopping terms can induce scale-free accumulation all eigenstates opposite to bulk direction, although nonmonotonic behavior fine tuned further increasing such weakens eventually reverses effect. The disorder, however, qualitatively enriches this...

10.1103/physrevresearch.5.033058 article EN cc-by Physical Review Research 2023-07-27

The remarkable sensitivity of non-Hermitian systems has been extensively studied and stimulated ideas about developing new types sensors. In this paper, we examine a chain parametrically driven coupled resonators governed by the squeezed Su-Schrieffer-Heeger model. We emphasize qualitative difference in sensor performance between configurations depending on bulk topology boundary modes, specifically for detecting both on-site skin effect perturbations. Our analysis goes beyond scenario...

10.1103/physrevresearch.7.013309 article EN cc-by Physical Review Research 2025-03-24

We explore anomalous skin effects at non-Hermitian impurities by studying their interplay with potential disorder and exactly solving a minimal lattice model. A striking feature of the solvable single-impurity model is that presence anisotropic hopping terms can induce scale-free accumulation all eigenstates opposite to bulk direction, although nonmonotonic behavior fine tuned further increasing such weakens eventually reverses effect. The disorder, however, qualitatively enriches this...

10.48550/arxiv.2302.09081 preprint EN other-oa arXiv (Cornell University) 2023-01-01

The remarkable sensitivity of non-Hermitian systems has been extensively studied and stimulated ideas about developing new types sensors. In this paper, we examine a chain parametrically driven coupled resonators governed by the squeezed Su-Schrieffer-Heeger model. We emphasize qualitative difference in sensor performance between configurations depending on bulk topology boundary modes, specifically for detecting both on-site skin effect perturbations. Our analysis goes beyond scenario...

10.48550/arxiv.2412.13249 preprint EN arXiv (Cornell University) 2024-12-17
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