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| Format: | Preprint |
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2022
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| Online-Zugang: | https://arxiv.org/abs/2212.05346 |
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| _version_ | 1866909083235254272 |
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| author | Angeletti, Jacopo Zippilli, Stefano Vitali, David |
| author_facet | Angeletti, Jacopo Zippilli, Stefano Vitali, David |
| contents | We study the dissipative stabilization of entangled states in arrays of quantum systems. Specifically, we are interested in the states of qubits (spin-1/2) which may or may not interact with one or more cavities (bosonic modes). In all cases only one element, either a cavity or a qubit, is lossy and irreversibly coupled to a reservoir. When the lossy element is a cavity, we consider a squeezed reservoir and only interactions which conserve the number of cavity excitations. Instead, when the lossy element is a qubit, pure decay and a properly selected structure of XY-interactions are taken into account. We show that in all cases, in the steady state, many pairs of distant, non-directly interacting qubits, which cover the whole array, can get entangled in a stationary way, by means of the interplay of dissipation and local interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_05346 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Dissipative stabilization of entangled qubit pairs in quantum arrays with a single localized dissipative channel Angeletti, Jacopo Zippilli, Stefano Vitali, David Quantum Physics We study the dissipative stabilization of entangled states in arrays of quantum systems. Specifically, we are interested in the states of qubits (spin-1/2) which may or may not interact with one or more cavities (bosonic modes). In all cases only one element, either a cavity or a qubit, is lossy and irreversibly coupled to a reservoir. When the lossy element is a cavity, we consider a squeezed reservoir and only interactions which conserve the number of cavity excitations. Instead, when the lossy element is a qubit, pure decay and a properly selected structure of XY-interactions are taken into account. We show that in all cases, in the steady state, many pairs of distant, non-directly interacting qubits, which cover the whole array, can get entangled in a stationary way, by means of the interplay of dissipation and local interactions. |
| title | Dissipative stabilization of entangled qubit pairs in quantum arrays with a single localized dissipative channel |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2212.05346 |