近日，东北师范大学X. X. Yi团队研究了原子-振荡器相互作用对耦合振荡器中老化跃迁的影响。2025年5月15日出版的《物理评论A》杂志发表了这项成果。

在量子计量、量子模拟和量子信息等领域，振荡常被用作辐射场的模型，它可以耦合到原子上，在创建和操纵非经典态方面发挥着重要作用。耦合振荡器中的老化跃迁在经典和量子环境下都得到了广泛的研究。众所周知，老化跃迁的发生可以通过振子之间的耗散耦合来调制。

研究组提出了一种通过两能级原子和振子之间的相干耦合来调制老化跃迁的替代方法。研究结果表明，与经典和量子体系中的无原子系统相比，原子-振荡器相干相互作用降低了老化跃迁所需的非活动振荡器与总振荡器的比率。

经典振子和量子振子的跃迁分析结果表明，原子的衰变速率和原子-振子耦合强度共同改变了老化跃迁点。这篇文章还阐明了观测结果背后的物理原理。他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操纵老化跃迁，从而促进了对量子技术中这些关键转变的控制和理解。

附：英文原文

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

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

Issue&Volume: 2025/05/15

Abstract: 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.

DOI: 10.1103/PhysRevA.111.052212

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.111.052212