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Nontrivial Topological Phases in Zig-Zag Arrays of Polarization Transmons

delete2026-05-14
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PRE
AI
K
Konopleva, E. E.
F
Fedorov, G. P. *
A
Astafiev, O. V.
DOI:10.1002/qute.202500912delete
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Abstract

Abstract

En 中文
In recent years, quantum simulators of topological models have been extensively studied across a variety of platforms and regimes. A new promising research direction makes use of meta-atoms with multiple intrinsic degrees of freedom, which to date have been predominantly studied in the classical regime. Here, we propose a superconducting quantum simulator to study an extension of the well-known Zig-Zag model with long-range cross-polarization couplings using polarization transmons hosting degenerate dipole orbitals. We map the phase transitions of the extended Zig-Zag model both numerically and analytically using inverse participation ratios and topological invariants. We demonstrate the existence of in-gap localized non-trivial and Tamm edge states. With linearized meta-atoms, we show via electromagnetic modeling that the proposed arrangement closely reproduces the extended Zig-Zag model. This work paves the way toward experimental investigation of the previously inaccessible topological quantum many-body phenomena.
Keywords:
quantum simulation
superconducting artificial atoms
topological physics

Journal

A
Advanced Quantum Technologies
IF:
4.3
Papers:
387
Citations:
3.2K

Organization

K
kotelnikov institute of radioengineering & electronics
Scholars:
680
Papers: 476
Citations: 0
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