dorsal/arxiv
View SchemaGeometric Quantum Information Storage Based on Atomic Ensemble
| Authors | C. P. Sun, P. Zhang, Y. Li |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311052 |
| URL | https://arxiv.org/abs/quant-ph/0311052 |
Abstract
Quantum information storage (QIS) is a physical process to write quantum states into a quantum memory (QM). We observe that in some general cases the quantum state can be retrieved up to a unitary transformation depicted by the non-Abelian Berry's geometric phase factor (holonomy). The QIS of photon with this geometric character can be implemented with the symmetric collective excitations of a $\Lambda$-atom ensemble, which is adiabatically controlled by a classical light with a small detuning $\delta$. The cyclic change of the controlled Rabi frequency $\Omega(t)$ with period $T=\frac{2n\pi}{\delta}$ accumulates additional geometric phases in different components of the final photon state. Then, in a purely geometric way the stored state can be decoded from the final state.
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"date_created": "2026-03-02T18:02:03.603000Z",
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"abstract": "Quantum information storage (QIS) is a physical process to write quantum\nstates into a quantum memory (QM). We observe that in some general cases the\nquantum state can be retrieved up to a unitary transformation depicted by the\nnon-Abelian Berry\u0027s geometric phase factor (holonomy). The QIS of photon with\nthis geometric character can be implemented with the symmetric collective\nexcitations of a $\\Lambda$-atom ensemble, which is adiabatically controlled by\na classical light with a small detuning $\\delta$. The cyclic change of the\ncontrolled Rabi frequency $\\Omega(t)$ with period $T=\\frac{2n\\pi}{\\delta}$\naccumulates additional geometric phases in different components of the final\nphoton state. Then, in a purely geometric way the stored state can be decoded\nfrom the final state.",
"arxiv_id": "quant-ph/0311052",
"authors": [
"C. P. Sun",
"P. Zhang",
"Y. Li"
],
"categories": [
"quant-ph"
],
"title": "Geometric Quantum Information Storage Based on Atomic Ensemble",
"url": "https://arxiv.org/abs/quant-ph/0311052"
},
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"variant": "snapshot-2026-03-01",
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