一个两能级原子与多腔模式相互作用的动力学

IF 0.7 4区物理与天体物理 Q3 COMPUTER SCIENCE, THEORY & METHODS

Quantum Information & Computation Pub Date : 2023-09-01 DOI:10.26421/qic23.11-12-2

Taoufik Said, Abdelhaq Chouikh, Zoubida Sakhi, Mohamed Bennai

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引用次数: 0

摘要

我们讨论了如何通过考虑由强微波场驱动的两能级原子与m+1腔模式的连续相互作用来实现量子逻辑门。该方案对原子的初始状态不敏感，并且操作时间与系统操作中涉及的腔模式的数量无关。该方案在短于光子寿命的时间内实现了两个量子逻辑门(m-目标量子位控制的全局相位门和多量子位相移门)。我们还研究了退相干对保真度的影响。总的来说，我们的系统对光子和原子衰变率的敏感性较低，因此可以通过实验实现。

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Dynamics of one two-level-atom interacting with a multiple cavity modes

We discuss how to implement quantum logic gates by considering a two-level-atom driven by a strong microwave field and successively interacting with m+1 cavity modes. The scheme is insensitive to the initial state of the atom, and the operation time is independent of the number of cavity modes involved in the system operations. This scheme is used to realize two quantum logic gates (m-target-qubit controlled-global-phase gate and Multi-qubit phase shift gate) in a time much shorter than the photonic lifetime. We also studied the influence of decoherence on the fidelity. In general, our system is reasonably less sensitive to the photonic and atomic decay rates and therefore it can be experimentally realized.

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来源期刊

Quantum Information & Computation 物理-计算机：理论方法

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

3.3 months

期刊介绍： Quantum Information & Computation provides a forum for distribution of information in all areas of quantum information processing. Original articles, survey articles, reviews, tutorials, perspectives, and correspondences are all welcome. Computer science, physics and mathematics are covered. Both theory and experiments are included. Illustrative subjects include quantum algorithms, quantum information theory, quantum complexity theory, quantum cryptology, quantum communication and measurements, proposals and experiments on the implementation of quantum computation, communications, and entanglement in all areas of science including ion traps, cavity QED, photons, nuclear magnetic resonance, and solid-state proposals.