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Physical realization of the Glauber quantum oscillator

机译:Glauber量子振荡器的物理实现

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摘要

More than thirty years ago Glauber suggested that the link between the reversible microscopic and the irreversible macroscopic world can be formulated in physical terms through an inverted harmonic oscillator describing quantum amplifiers. Further theoretical studies have shown that the paradigm for irreversibility is indeed the reversed harmonic oscillator. As outlined by Glauber, providing experimental evidence of these idealized physical systems could open the way to a variety of fundamental studies, for example to simulate irreversible quantum dynamics and explain the arrow of time. However, supporting experimental evidence of reversed quantized oscillators is lacking. We report the direct observation of exploding n = 0 and n = 2 discrete states and Γ0 and Γ2 quantized decay rates of a reversed harmonic oscillator generated by an optical photothermal nonlinearity. Our results give experimental validation to the main prediction of irreversible quantum mechanics, that is, the existence of states with quantized decay rates. Our results also provide a novel perspective to optical shock-waves, potentially useful for applications as lasers, optical amplifiers, white-light and X-ray generation.
机译:三十多年前,格劳伯(Glauber)提出,可逆的微观世界与不可逆的宏观世界之间的联系可以通过描述量子放大器的反向谐波振荡器以物理术语来表述。进一步的理论研究表明,不可逆的范例确实是反向谐波振荡器。正如格劳伯(Glauber)所概述的那样,提供这些理想物理系统的实验证据可以为各种基础研究开辟道路,例如,模拟不可逆的量子动力学并解释时间箭。然而,缺乏反向量化振荡器的实验证据。我们报告了由光学光热非线性产生的反向谐波振荡器的n = 0和n = 2离散状态爆炸以及Γ0和Γ2量化衰减率爆炸的直接观察。我们的研究结果为不可逆量子力学的主要预测提供了实验验证,也就是存在具有量化衰减率的状态。我们的研究结果还为光学冲击波提供了一种新颖的视角,可能对激光器,光学放大器,白光和X射线的产生有用。

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