Entanglement propagation and dynamics in non-additive quantum systems
The prominent collective character of long-range interacting quantum systems makes them promising candidates for quantum technological applications. Yet, lack of additivity overthrows the traditional picture for entanglement scaling and transport, due to the breakdown of the common mechanism based o...
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| Main Authors: | , |
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| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
21 Dec 2021
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| In: |
Arxiv
Year: 2021, Pages: 1-12 |
| DOI: | 10.48550/arXiv.2112.11488 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.48550/arXiv.2112.11488 Verlag, lizenzpflichtig, Volltext: http://arxiv.org/abs/2112.11488 
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| Author Notes: | Guido Giachett, Nicolo Defenu |
| Summary: | The prominent collective character of long-range interacting quantum systems makes them promising candidates for quantum technological applications. Yet, lack of additivity overthrows the traditional picture for entanglement scaling and transport, due to the breakdown of the common mechanism based on excitations propagation and confinement. Here, we describe the dynamics of the entanglement entropy in many-body quantum systems with diverging long-range two body potentials. While in the strict thermodynamic limit entanglement dynamics is shown to be suppressed, a rich mosaic of novel scaling regimes is observed at intermediate system sizes, due to the possibility to trigger multiple resonant modes in the global dynamics. Quantitative predictions on the shape and timescales of entanglement propagation are made, paving the way to the observation of these phases in current quantum simulators. This picture is connected and contrasted with the case of local many body systems subject to Floquet driving. |
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| Item Description: | Gesehen am 14.09.2022 |
| Physical Description: | Online Resource |
| DOI: | 10.48550/arXiv.2112.11488 |