dorsal/arxiv
View SchemaGeneration of many-particle entanglement in an ion trap by adiabatic ground-state transitions
| Authors | R. G. Unanyan, M. Fleischhauer |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0208144 |
| URL | https://arxiv.org/abs/quant-ph/0208144 |
| DOI | 10.1103/PhysRevLett.90.133601 |
Abstract
We discuss the creation of many-particle entanglement in an ion trap where all ions are simultaneously coupled to bichromatic laser fields. It is shown that in a time-averaged, coarse-grained picture the system can be mapped onto a spin ensemble with controllable collective interactions. An adiabatic change of laser parameters allows a transfer from separable to entangled eigenstates of the many-particle Hamiltonian. Of particular interest is a transition in the ground state which in some cases corresponds to a quantum phase transition. The influence of decoherence mechanisms can be substantially reduced if at all times a sufficiently large energy gap between the ground state and the first excited state is maintained.
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"abstract": "We discuss the creation of many-particle entanglement in an ion trap where\nall ions are simultaneously coupled to bichromatic laser fields. It is shown\nthat in a time-averaged, coarse-grained picture the system can be mapped onto a\nspin ensemble with controllable collective interactions. An adiabatic change of\nlaser parameters allows a transfer from separable to entangled eigenstates of\nthe many-particle Hamiltonian. Of particular interest is a transition in the\nground state which in some cases corresponds to a quantum phase transition. The\ninfluence of decoherence mechanisms can be substantially reduced if at all\ntimes a sufficiently large energy gap between the ground state and the first\nexcited state is maintained.",
"arxiv_id": "quant-ph/0208144",
"authors": [
"R. G. Unanyan",
"M. Fleischhauer"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.90.133601",
"title": "Generation of many-particle entanglement in an ion trap by adiabatic ground-state transitions",
"url": "https://arxiv.org/abs/quant-ph/0208144"
},
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