dorsal/arxiv
View SchemaA scheme for unconventional geometric quantum computation in cavity QED
| Authors | Xun-Li Feng, Zisheng Wang, Chunfeng Wu, L. C. Kwek, C. H. Oh |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606098 |
| URL | https://arxiv.org/abs/quant-ph/0606098 |
| DOI | 10.1103/PhysRevA.75.052312 |
Abstract
We present a scheme for implementing the unconventional geometric two-qubit phase gate with nonzero dynamical phase by using the two-channel Raman interaction of two atoms in a cavity. We show that the dynamical phase acquired in a cyclic evolution is proportional to the geometric phase acquired in the same cyclic evolution, hence the the total phase possesses the same geometric features as the geometric phase. In our scheme the atomic excited state is adiabatically eliminated and the operation of the proposed logic gate involves only in the metastable states of the atom and hence is not affected by spontaneous emission.
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"date_created": "2026-03-02T18:02:27.516000Z",
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"abstract": "We present a scheme for implementing the unconventional geometric two-qubit\nphase gate with nonzero dynamical phase by using the two-channel Raman\ninteraction of two atoms in a cavity. We show that the dynamical phase acquired\nin a cyclic evolution is proportional to the geometric phase acquired in the\nsame cyclic evolution, hence the the total phase possesses the same geometric\nfeatures as the geometric phase. In our scheme the atomic excited state is\nadiabatically eliminated and the operation of the proposed logic gate involves\nonly in the metastable states of the atom and hence is not affected by\nspontaneous emission.",
"arxiv_id": "quant-ph/0606098",
"authors": [
"Xun-Li Feng",
"Zisheng Wang",
"Chunfeng Wu",
"L. C. Kwek",
"C. H. Oh"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.75.052312",
"title": "A scheme for unconventional geometric quantum computation in cavity QED",
"url": "https://arxiv.org/abs/quant-ph/0606098"
},
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