dorsal/arxiv
View SchemaDistant entanglement with nearest neighbor interactions
| Authors | Gavin K. Brennen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0206199 |
| URL | https://arxiv.org/abs/quant-ph/0206199 |
Abstract
Preparing many body entangled states efficiently using available interactions is a challenging task. One solution may be to couple a system collectively with a probe that leaves residual entanglement in the system. We investigate the entanglement produced between two possibly distant qubits 1 and 2 that interact locally with a third qubit 3 under unitary evolution generated by pairwise Hamiltonians. For the case where the Hamiltonians commute, relevant to certain quantum nondemolition measurements, the entanglement between qubits 1 and 2 is calculated explicitly for several classes of initial states and compared with the case of noncommuting interaction Hamiltonians. This analysis can be helpful to identify preferable physical system interactions for entangled state synthesis.
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"abstract": "Preparing many body entangled states efficiently using available interactions\nis a challenging task. One solution may be to couple a system collectively with\na probe that leaves residual entanglement in the system. We investigate the\nentanglement produced between two possibly distant qubits 1 and 2 that interact\nlocally with a third qubit 3 under unitary evolution generated by pairwise\nHamiltonians. For the case where the Hamiltonians commute, relevant to certain\nquantum nondemolition measurements, the entanglement between qubits 1 and 2 is\ncalculated explicitly for several classes of initial states and compared with\nthe case of noncommuting interaction Hamiltonians. This analysis can be helpful\nto identify preferable physical system interactions for entangled state\nsynthesis.",
"arxiv_id": "quant-ph/0206199",
"authors": [
"Gavin K. Brennen"
],
"categories": [
"quant-ph"
],
"title": "Distant entanglement with nearest neighbor interactions",
"url": "https://arxiv.org/abs/quant-ph/0206199"
},
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