开放量子腔光力系统中声子输运特性及其相干操控研究

通常物理系统中热噪声流和声子输运操纵在控制能量和热转移方面扮演了重要角色。尤其是开放量子腔光力系统与外部耗散源能量转移的相干控制有待仔细研究。为了探讨这类量子系统能量转移特性，本项目拟从理论上研究与外部噪声源耗散耦合的腔光力系统中从机械振子热场到系统或机械振子耗散源之间声子输运性质及其相干操控。主要讨论在外场驱动作用下，系统光力相干耦合、腔场失谐以及量子特征等对声子输运及相关热力学行为的影响和控制。进一步重点分析腔光力系统中多个控制参数做绝热调控时参数相空间非平凡曲率诱导的声子输运几何相位贡献，并探讨系统几何声子流的产生和光学操控。同时探索研究其它相干作用如原子与光场耦合、量子真空力及量子噪声等对声子输运和几何相位效应的影响和提升，并给出系统各声子输运性质优化参数。本项目研究对实现微腔光力系统声子转移和调控、光力学几何声子流利用和探测以及调控腔光力系统在量子信息处理中应用具有重要研究价值。

In general, the manipulation of thermal noise flow and phonon transport plays an important role in controlling energy and heat transfer in physical systems. In particular, the coherent control of the energy transfer between an open quantum cavity optomechanical system and its external dissipative sources needs to be carefully studied. In order to investigate the characteristics of the energy transfer in this kind of quantum systems, this project intends to study theoretically the phonon transport properties and its coherent manipulation between the thermal bath of mechanical oscillator and the system or between the thermal baths of mechanical oscillators in an open cavity optomechanical system with external dissipative couplings. The main aim of the project is to study the influence and control of the optomechanical coherent coupling, the detuning of the cavity field and the quantum characteristics of the system on the photon transport and the relevant thermodynamic behavior of the optomechanical system driven by an external intense laser. Further, we focus on the geometric phase contribution of the phonon transport induced by the nontrivial curvature in parametric phase space in cavity optomechanical systems with multiple control parameters being adiabatic controlled, and discuss the generation and optical manipulation of the geometric phonon flux of the system. The influence and promotion effects of other coherent interactions, such as atom-field coupling, quantum vacuum force and the quantum noise characteristics on the phonon transport and the geometric phase effect are carefully investigated. Finally, the optimal parameters of various phonon transport properties in the system will be provided. The project has an important research value for the realization of phonon transfer and regulation of micro-cavity optomechanical system, the utilization and detection of optomechanical geometric phonon flux as well as the application of the modulated optomechanical system in the quantum information process.