2022/12/07 by Evangelos Varvelis, David P. DiVincenzo, Varvelis, Evangelos +1 · 4 citations
Computer Science · Physics and Astronomy · #Condensed matter physics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum and electron transport phenomena #Quantum computer #Quantum many-body systems #Quantum mechanics #Quasicrystal #Quasiperiodic function #Transmon
paper · pdf · doi:10.1103/physrevb.109.144201
published in Physical review. B./Physical review. B 109(14) (American Physical Society)
openalex publication_date 2024/04/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
To be useful for quantum computation, qubits in an array must remain localized -- that is, not ``dressed'' too much by nearby degrees of freedom. This localization has been previously achieved using disorder. But the authors observe here that a more effective route to localization is with a quasiperiodic patterning of the qubit array Hamiltonian. This paper develops two different perturbation approaches to calculate diagnostics for many-body localization in quasiperiodic superconducting transmon arrays. Perturbing in anharmonicity versus perturbing in hopping strength give complementary information.