Realization of tilted Dirac-like microwave cone in superconducting circuit lattices
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916571497103360 |
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| author | Youssefi, Amir Motavassal, Ahmad Kono, Shingo Jafari, Seyed Akbar Kippenberg, Tobias J. |
| author_facet | Youssefi, Amir Motavassal, Ahmad Kono, Shingo Jafari, Seyed Akbar Kippenberg, Tobias J. |
| contents | Dirac-like band crossings are paradigms in condensed matter systems to emulate high-energy physics phenomena. They are associated with two aspects: gap and tilting. The ability to design sign-changing gap gives rise to band topology, whereas the tilting of band crossings which is a gateway for large gravity-like effects remains uncharted. In this work, we introduce an experimental platform to realize tilted Dirac-like microwave cone in large-scale superconducting circuit lattices. The direction and magnitude of the tilt can be controlled by engineering the axially preferred second neighbor coupling. We demonstrate three lattices with 731-site LC resonator featuring tilt values of up to 59% of relative difference in the opposite-direction group velocities. This is obtained by reconstructing the density of states (DOS) of measured microwave resonance frequencies. Harnessing the tilt of Dirac-like band crossings lays the foundation for weaving the fabric of an emergent solid-state spacetime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10434 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Realization of tilted Dirac-like microwave cone in superconducting circuit lattices Youssefi, Amir Motavassal, Ahmad Kono, Shingo Jafari, Seyed Akbar Kippenberg, Tobias J. Mesoscale and Nanoscale Physics Other Condensed Matter General Relativity and Quantum Cosmology Quantum Physics Dirac-like band crossings are paradigms in condensed matter systems to emulate high-energy physics phenomena. They are associated with two aspects: gap and tilting. The ability to design sign-changing gap gives rise to band topology, whereas the tilting of band crossings which is a gateway for large gravity-like effects remains uncharted. In this work, we introduce an experimental platform to realize tilted Dirac-like microwave cone in large-scale superconducting circuit lattices. The direction and magnitude of the tilt can be controlled by engineering the axially preferred second neighbor coupling. We demonstrate three lattices with 731-site LC resonator featuring tilt values of up to 59% of relative difference in the opposite-direction group velocities. This is obtained by reconstructing the density of states (DOS) of measured microwave resonance frequencies. Harnessing the tilt of Dirac-like band crossings lays the foundation for weaving the fabric of an emergent solid-state spacetime. |
| title | Realization of tilted Dirac-like microwave cone in superconducting circuit lattices |
| topic | Mesoscale and Nanoscale Physics Other Condensed Matter General Relativity and Quantum Cosmology Quantum Physics |
| url | https://arxiv.org/abs/2501.10434 |