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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2307.04903 |
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| _version_ | 1866916411227504640 |
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| author | Maldonado, Thomas J. Pham, Dung N. Amaolo, Alessio Rodriguez, Alejandro W. Türeci, Hakan E. |
| author_facet | Maldonado, Thomas J. Pham, Dung N. Amaolo, Alessio Rodriguez, Alejandro W. Türeci, Hakan E. |
| contents | By applying a hydrodynamic representation of non-relativistic scalar electrodynamics to the superconducting order parameter, we predict a negative (attractive) pressure between planar superconducting bodies. For conventional superconductors with London penetration depth $λ_\text{L} \approx 100 \text{ nm}$, the pressure reaches tens of $\text{N/mm}^2$ at angstrom separations. The resulting surface energies are in better agreement with experimental values than those predicted by the Hartree-Fock theory, and the emergent electric-field screening length is comparable to that of the Thomas-Fermi theory. The model circumvents the bulk limitations of the Bardeen-Cooper-Schrieffer and Ginzburg-Landau theories to the analysis of superconducting quantum devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_04903 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Negative electrohydrostatic pressure between superconducting bodies Maldonado, Thomas J. Pham, Dung N. Amaolo, Alessio Rodriguez, Alejandro W. Türeci, Hakan E. Superconductivity Quantum Physics By applying a hydrodynamic representation of non-relativistic scalar electrodynamics to the superconducting order parameter, we predict a negative (attractive) pressure between planar superconducting bodies. For conventional superconductors with London penetration depth $λ_\text{L} \approx 100 \text{ nm}$, the pressure reaches tens of $\text{N/mm}^2$ at angstrom separations. The resulting surface energies are in better agreement with experimental values than those predicted by the Hartree-Fock theory, and the emergent electric-field screening length is comparable to that of the Thomas-Fermi theory. The model circumvents the bulk limitations of the Bardeen-Cooper-Schrieffer and Ginzburg-Landau theories to the analysis of superconducting quantum devices. |
| title | Negative electrohydrostatic pressure between superconducting bodies |
| topic | Superconductivity Quantum Physics |
| url | https://arxiv.org/abs/2307.04903 |