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理论物理通讯：英文版

Suppression of Amplitude Decoherence in Arbitrary n-Level Atom in ≡-Configuration with Bang-Bang Controls

Wang, Yanhui, Liu, Xiao-Shu, Long, Lǔ

Published Jan 1, 2008• 1 citation
OpenAlex

Abstract

在这篇论文，我们给巨响巨响(BB ) 去耦计划在 Ξ-configuration 在五水平、六水平的原子系统压制振幅 decoherence。我们在 Ξ-configuration 概括这个计划到任意的水平原子系统。相应去耦操作员明确地被给。

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In this paper, we derive the conditions of maintaining quantum coherence in arbitrary n-level atom in Ξ-configuration with Bang-Bang (BB) controls when the system exists the phase decoherence, the amplitude decoherence and the general decoherence (the amplitude damping and phase damping simultaneously), respectively. On this basis, we propose our BB decoupling scheme to suppress the phase decoherence in arbitrary n-level atom in Ξ-configuration. The corresponding decoupling operators are derived explicitly. At last we design the BB decoupling scheme to suppress phase decoherence for a six-level atom system in Ξ-configuration.