Entanglement enhancement induced by noise in inhomogeneously monitored systems
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866913690143424512 |
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| author | Muzzi, Cristiano Tsitsishvili, Mikheil Chiriacò, Giuliano |
| author_facet | Muzzi, Cristiano Tsitsishvili, Mikheil Chiriacò, Giuliano |
| contents | We study how stronger noise can enhance the entanglement in inhomogeneously monitored quantum systems. We consider a free fermions model composed of two coupled chains - a system chain and an ancilla chain, each subject to its own different noise - and explore the dynamics of entanglement within the system chain under different noise intensities. Our results demonstrate that, contrary to the detrimental effects typically associated with noise, certain regimes of noise on the ancilla can significantly enhance entanglement within the system. Numerical simulations demonstrate the robustness of such entanglement enhancement across various system sizes and noise parameters. This enhancement is found to be highly dependent on the hopping strength in the ancilla, suggesting that the interplay between unitary dynamics and noise can be tuned to optimize the entanglement of a quantum system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06712 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Entanglement enhancement induced by noise in inhomogeneously monitored systems Muzzi, Cristiano Tsitsishvili, Mikheil Chiriacò, Giuliano Quantum Physics Statistical Mechanics We study how stronger noise can enhance the entanglement in inhomogeneously monitored quantum systems. We consider a free fermions model composed of two coupled chains - a system chain and an ancilla chain, each subject to its own different noise - and explore the dynamics of entanglement within the system chain under different noise intensities. Our results demonstrate that, contrary to the detrimental effects typically associated with noise, certain regimes of noise on the ancilla can significantly enhance entanglement within the system. Numerical simulations demonstrate the robustness of such entanglement enhancement across various system sizes and noise parameters. This enhancement is found to be highly dependent on the hopping strength in the ancilla, suggesting that the interplay between unitary dynamics and noise can be tuned to optimize the entanglement of a quantum system. |
| title | Entanglement enhancement induced by noise in inhomogeneously monitored systems |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2410.06712 |