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Updated: Jun 26, 2026
05:39
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Correlation-drivend-wave superconducting dome from pseudogap spectral reconstruction.
Yue Yuan1, Zi-Wen Pan1, Fei Yang2
1Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Summary
Strongly correlated systems exhibit d-wave superconductivity, where pseudogap correlations and superconducting order uniquely alter the low-energy spectrum. This interplay naturally forms a superconducting dome, with dx2-y2-wave pairing proving robust.
Area of Science:
- Condensed Matter Physics
- Quantum Materials
- Superconductivity Theory
Background:
- Previous studies explored s-wave superconductivity in correlated systems using the Hatsugai-Kohmoto model.
- Correlations alone significantly influence superconducting behavior.
Purpose of the Study:
- Perform self-consistent microscopic calculations for d-wave superconductivity in strongly correlated systems.
- Investigate the distinct effects of pseudogap correlations and superconducting order on the low-energy spectrum.
- Analyze the emergence of the superconducting dome and the robustness of different pairing symmetries.
Main Methods:
- Employed an exactly solvable correlated model exhibiting a pseudogap phase and partially flat bands.
- Conducted self-consistent microscopic calculations.
- Analyzed the low-energy spectrum and spectral weight modifications.
Main Results:
- Pseudogap correlations cause momentum-localized spectral weight suppression.
- Superconducting order induces coherent quasiparticle excitation reorganization.
- The interplay generates a superconducting dome, with optimal doping near the quantum critical point.
- dx2-y2-wave superconductivity is robust, dominating over dxy-wave and s-wave channels.
Conclusions:
- Pseudogap correlations and superconducting order have distinct impacts on the electronic spectrum.
- The model naturally reproduces the superconducting dome observed in cuprates.
- dx2-wave superconductivity is energetically favored in a broad doping range, offering insights into cuprate superconductivity.
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