Universal monitored dynamics in multimode bosonic systems
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866911517557915648 |
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| author | Patel, Shivam McCarthy, Catherine Chakraborty, Ahana Huang, Jordan DiNapoli, Thomas J. Vasseur, Romain Pixley, J. H. Chakram, Srivatsan |
| author_facet | Patel, Shivam McCarthy, Catherine Chakraborty, Ahana Huang, Jordan DiNapoli, Thomas J. Vasseur, Romain Pixley, J. H. Chakram, Srivatsan |
| contents | We propose a route to study monitored many-body dynamics in multimode bosonic systems using circuit quantum electrodynamics. In this experimental setting, we construct several bosonic models comprising brickwork circuits built from beam-splitter gates, local parity measurements, and optional on-site Hubbard interactions, and diagnose their monitored dynamics via ancilla purification and a learnability-based probe. Under parity measurements, generic gate sets exhibit behavior that is largely consistent with a conventional measurement-induced phase transition, while a special class of beam-splitter circuits shows an apparent critical-like high-measurement regime in which purification times scale linearly with system size. We show that for realistic noise, gate, and measurement rates, these signatures are observable with near-term circuit QED hardware. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_13125 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Universal monitored dynamics in multimode bosonic systems Patel, Shivam McCarthy, Catherine Chakraborty, Ahana Huang, Jordan DiNapoli, Thomas J. Vasseur, Romain Pixley, J. H. Chakram, Srivatsan Quantum Physics Statistical Mechanics We propose a route to study monitored many-body dynamics in multimode bosonic systems using circuit quantum electrodynamics. In this experimental setting, we construct several bosonic models comprising brickwork circuits built from beam-splitter gates, local parity measurements, and optional on-site Hubbard interactions, and diagnose their monitored dynamics via ancilla purification and a learnability-based probe. Under parity measurements, generic gate sets exhibit behavior that is largely consistent with a conventional measurement-induced phase transition, while a special class of beam-splitter circuits shows an apparent critical-like high-measurement regime in which purification times scale linearly with system size. We show that for realistic noise, gate, and measurement rates, these signatures are observable with near-term circuit QED hardware. |
| title | Universal monitored dynamics in multimode bosonic systems |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2603.13125 |