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arXiv 2602.20568quant-ph
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原子-振荡子相互作用对耦合振荡子中衰老转变的影响

Effect of atom-oscillator interaction on the aging transition in coupled oscillators

Northeast Normal University(东北师范大学)

Huining Zhang, X. Z. Hao, X. X. Yi

AI总结:

本文研究了原子-振荡子相互作用对耦合振荡子中衰老转变的影响,通过相干耦合调节衰老转变点,提高了量子系统中对关键转变的控制能力。

摘要:

振荡子常被用作辐射场的模型,可能与原子耦合,并在量子计量学、量子模拟和量子信息中起重要作用。在耦合振荡子中的衰老转变已在经典和量子背景下广泛研究。众所周知,衰老转变的起始可以由振荡子之间的耗散耦合调节。在本研究中,我们提出了一种通过两个能级原子与振荡子之间的相干耦合来调节衰老转变的替代方法。我们的发现表明,与经典和量子 regime 中无原子的系统相比,原子-振荡子相干相互作用降低了从非活动到总振荡子比值所需的无活动比。对于经典振荡子和量子振荡子的转变分析结果表明,原子的衰减率和原子-振荡子耦合强度共同改变衰老转变点。本文还阐述了观察到的物理机制。我们的研究引入了一种易于实现的策略,用于在更复杂的系统中调节衰老转变,从而推进了这些关键转变在量子技术中的控制和理解。

英文摘要:

Oscillators are often employed as a model of radiation fields, which may couple to an atom and play an important role for creating and manipulating nonclassical states in quantum metrology, quantum simulation, and quantum information. Aging transitions in coupled oscillators have been studied extensively in both the classical and quantum contexts. It is well known that the onset of aging transitions can be modulated by the dissipative coupling between oscillators. In this study, we propose an alternative way to modulate the aging transition through coherent couplings between a two-level atom and the oscillators. Our findings reveal that, compared to atom-free systems in both classical and quantum regimes, the atom-oscillator coherent interaction reduces the inactive-to-total oscillator ratio required for aging transitions. Analytical results of the transition for both the classical oscillators and quantum oscillators suggest that the decay rate of the atom and the atom-oscillator coupling strength jointly change the aging transition point. The physics behind the observation is also elucidated in this article. Our research introduces a readily implementable strategy for manipulating aging transitions in more intricate systems, thereby advancing the control and understanding of these critical transitions in quantum technologies.

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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