Experimental verification of the treatment of time-dependent flux in circuit quantization
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2022
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866917624933253120 |
|---|---|
| author | Bryon, Jacob Weiss, D. K. You, Xinyuan Sussman, Sara Croot, Xanthe Huang, Ziwen Koch, Jens Houck, Andrew |
| author_facet | Bryon, Jacob Weiss, D. K. You, Xinyuan Sussman, Sara Croot, Xanthe Huang, Ziwen Koch, Jens Houck, Andrew |
| contents | Recent theoretical work has highlighted that quantizing a superconducting circuit in the presence of time-dependent flux $Φ(t)$ generally produces Hamiltonian terms proportional to $dΦ/dt$ unless a special allocation of the flux across inductive terms is chosen. Here, we present an experiment probing the effects of a fast flux ramp applied to a heavy-fluxonium circuit. The experiment confirms that naïve omission of the $dΦ/dt$ term leads to theoretical predictions inconsistent with experimental data. Experimental data are fully consistent with recent theory that includes the derivative term or equivalently uses "irrotational variables" that uniquely allocate the flux to properly eliminate the $dΦ/dt$ term. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2208_03738 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Experimental verification of the treatment of time-dependent flux in circuit quantization Bryon, Jacob Weiss, D. K. You, Xinyuan Sussman, Sara Croot, Xanthe Huang, Ziwen Koch, Jens Houck, Andrew Quantum Physics Recent theoretical work has highlighted that quantizing a superconducting circuit in the presence of time-dependent flux $Φ(t)$ generally produces Hamiltonian terms proportional to $dΦ/dt$ unless a special allocation of the flux across inductive terms is chosen. Here, we present an experiment probing the effects of a fast flux ramp applied to a heavy-fluxonium circuit. The experiment confirms that naïve omission of the $dΦ/dt$ term leads to theoretical predictions inconsistent with experimental data. Experimental data are fully consistent with recent theory that includes the derivative term or equivalently uses "irrotational variables" that uniquely allocate the flux to properly eliminate the $dΦ/dt$ term. |
| title | Experimental verification of the treatment of time-dependent flux in circuit quantization |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2208.03738 |