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arXiv 0704.0376quant-phcond-mat.mes-hall
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完整量子门的环境噪声抑制

Environmental noise reduction for holonomic quantum gates

Daniele Parodi, Maura Sassetti, Paolo Solinas, Nino Zanghì

摘要:

我们研究了完整量子门的性能,由激光驱动,在耗散环境的影响下模拟为一个热浴的振荡器。我们展示了如何通过适当选择激光器的可控参数的流形中的环路来提高门的性能。对于一个简化的,虽然现实的模型,我们发现了令人惊讶的结果,在很长一段时间的演变的门的性能(正确估计的平均保真度)增加。在此基础上,我们比较了完整门与所谓的受激拉曼绝热通道(STIRAP)门。

英文摘要:

We study the performance of holonomic quantum gates, driven by lasers, under the effect of a dissipative environment modeled as a thermal bath of oscillators. We show how to enhance the performance of the gates by suitable choice of the loop in the manifold of the controllable parameters of the laser. For a simplified, albeit realistic model, we find the surprising result that for a long time evolution the performance of the gate (properly estimated in terms of average fidelity) increases. On the basis of this result, we compare holonomic gates with the so-called stimulated Raman adiabatic passage (STIRAP) gates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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