dorsal/arxiv
View SchemaRadiative corrections and quantum gates in molecular systems
| Authors | John H. Reina, Ray G. Beausoleil, Tim P. Spiller, William J. Munro |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0408066 |
| URL | https://arxiv.org/abs/quant-ph/0408066 |
| DOI | 10.1103/PhysRevLett.93.250501 |
| Journal | Phys. Rev. Lett. 93, 250501 (2004) |
Abstract
We propose a method for quantum information processing using molecules coupled to an external laser field. This utilizes molecular interactions, control of the external field and an effective energy shift of the doubly-excited state of two coupled molecules. Such a level shift has been seen in the two-photon resonance experiments recently reported in Ref. [1]. Here we show that this can be explained in terms of the QED Lamb shift. We quantify the performance of the proposed quantum logic gates in the presence of dissipative mechanisms. The unitary transformations required for performing one- and two-qubit operations can be implemented with present day technology.
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"abstract": "We propose a method for quantum information processing using molecules\ncoupled to an external laser field. This utilizes molecular interactions,\ncontrol of the external field and an effective energy shift of the\ndoubly-excited state of two coupled molecules. Such a level shift has been seen\nin the two-photon resonance experiments recently reported in Ref. [1]. Here we\nshow that this can be explained in terms of the QED Lamb shift. We quantify the\nperformance of the proposed quantum logic gates in the presence of dissipative\nmechanisms. The unitary transformations required for performing one- and\ntwo-qubit operations can be implemented with present day technology.",
"arxiv_id": "quant-ph/0408066",
"authors": [
"John H. Reina",
"Ray G. Beausoleil",
"Tim P. Spiller",
"William J. Munro"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.93.250501",
"journal_ref": "Phys. Rev. Lett. 93, 250501 (2004)",
"title": "Radiative corrections and quantum gates in molecular systems",
"url": "https://arxiv.org/abs/quant-ph/0408066"
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