dorsal/arxiv
View SchemaNon-Abelian Geometric Quantum Memory with Atomic Ensemble
| Authors | Y. Li, P. Zhang, P. Zanardi, C. P. Sun |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0402177 |
| URL | https://arxiv.org/abs/quant-ph/0402177 |
| DOI | 10.1103/PhysRevA.70.032330 |
Abstract
We study a quantum information storage scheme based on an atomic ensemble with near (also exact) three-photon resonance electromagnetically induced transparency (EIT). Each 4-level-atom is coupled to two classical control fields and a quantum probe field. Quantum information is adiabatically stored in the associated dark polariton manifold. An intrinsic non-trivial topological structure is discovered in our quantum memory implemented through the symmetric collective atomic excitations with a hidden SU(3) dynamical symmetry. By adiabatically changing the Rabi frequencies of two classical control fields, the quantum state can be retrieved up to a non-abelian holonomy and thus decoded from the final state in a purely geometric way.
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"abstract": "We study a quantum information storage scheme based on an atomic ensemble\nwith near (also exact) three-photon resonance electromagnetically induced\ntransparency (EIT). Each 4-level-atom is coupled to two classical control\nfields and a quantum probe field. Quantum information is adiabatically stored\nin the associated dark polariton manifold. An intrinsic non-trivial topological\nstructure is discovered in our quantum memory implemented through the symmetric\ncollective atomic excitations with a hidden SU(3) dynamical symmetry. By\nadiabatically changing the Rabi frequencies of two classical control fields,\nthe quantum state can be retrieved up to a non-abelian holonomy and thus\ndecoded from the final state in a purely geometric way.",
"arxiv_id": "quant-ph/0402177",
"authors": [
"Y. Li",
"P. Zhang",
"P. Zanardi",
"C. P. Sun"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.70.032330",
"title": "Non-Abelian Geometric Quantum Memory with Atomic Ensemble",
"url": "https://arxiv.org/abs/quant-ph/0402177"
},
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