dorsal/arxiv
View SchemaCoupling bosonic modes with a qubit: entanglement dynamics at zero and finite-temperatures
| Authors | Emanuele Ciancio, Paolo Zanardi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511114 |
| URL | https://arxiv.org/abs/quant-ph/0511114 |
| DOI | 10.1016/j.physleta.2006.07.067 |
Abstract
We consider a system of two iso-spectral bosonic modes coupled with a single two-level systems i.e., a qubit. The dynamics is described by a mode-symmetric two-modes Jaynes-Cummings. The entanglement, induced between the two bosonic modes, is analyzed and quantified by negativity. We computed the time evolution of negativity starting from an initial thermal state of the bosonic sector for both zero and finite temperature. We also studied the entangling power of the interaction as a function of mode-qubit detuning and its resilience against temperature increase. Finally a two-qubit gates based on bosonic virtual subsystem is discussed.
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"abstract": "We consider a system of two iso-spectral bosonic modes coupled with a single\ntwo-level systems i.e., a qubit. The dynamics is described by a mode-symmetric\ntwo-modes Jaynes-Cummings. The entanglement, induced between the two bosonic\nmodes, is analyzed and quantified by negativity. We computed the time evolution\nof negativity starting from an initial thermal state of the bosonic sector for\nboth zero and finite temperature. We also studied the entangling power of the\ninteraction as a function of mode-qubit detuning and its resilience against\ntemperature increase. Finally a two-qubit gates based on bosonic virtual\nsubsystem is discussed.",
"arxiv_id": "quant-ph/0511114",
"authors": [
"Emanuele Ciancio",
"Paolo Zanardi"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physleta.2006.07.067",
"title": "Coupling bosonic modes with a qubit: entanglement dynamics at zero and finite-temperatures",
"url": "https://arxiv.org/abs/quant-ph/0511114"
},
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