Open Quantum Dynamics: Memory Effects and Superactivation of Backflow of Information
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866910452974354432 |
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| author | Benatti, Fabio Nichele, Giovanni |
| author_facet | Benatti, Fabio Nichele, Giovanni |
| contents | We investigate the divisibility properties of the tensor products $Λ^{(1)}_t\otimesΛ^{(2)}_t$ of open quantum dynamics $Λ^{(1,2)}_t$ with time-dependent generators. These dynamical maps emerge from a compound open system $S_1+S_2$ that interacts with its own environment in such a way that memory effects remain when the environment is traced away. This study is motivated by the following intriguing effect: one can have Backflow of Information (BFI) from the environment to $S_1+S_2$ without the same phenomenon occurring for either $S_1$ and $S_2$. We shall refer to this effect as the Superactivation of BFI (SBFI). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_11872 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Open Quantum Dynamics: Memory Effects and Superactivation of Backflow of Information Benatti, Fabio Nichele, Giovanni Quantum Physics We investigate the divisibility properties of the tensor products $Λ^{(1)}_t\otimesΛ^{(2)}_t$ of open quantum dynamics $Λ^{(1,2)}_t$ with time-dependent generators. These dynamical maps emerge from a compound open system $S_1+S_2$ that interacts with its own environment in such a way that memory effects remain when the environment is traced away. This study is motivated by the following intriguing effect: one can have Backflow of Information (BFI) from the environment to $S_1+S_2$ without the same phenomenon occurring for either $S_1$ and $S_2$. We shall refer to this effect as the Superactivation of BFI (SBFI). |
| title | Open Quantum Dynamics: Memory Effects and Superactivation of Backflow of Information |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.11872 |