由原子玻色-爱因斯坦凝聚体（BEC）与光腔和/或杂质原子结合可以形成强耦合的BEC杂化量子系统。这类量子杂化系统中诸多参数的精确可控性为研究量子力学基本问题、产生和操控量子效应提供了一个理想平台，是当前超冷原子物理、量子物理和量子信息领域的研究前沿。本项目集中针对腔BEC和参杂BEC这两类杂化量子系统,充分利用杂化系统中各组分的量子特性和可操控优势，研究BEC杂化系统量子相干性的产生和操控机理，提出产生和操控宏观-微观和微观-微观量子纠缠的新方法，揭示BEC杂化量子系统中的新奇量子效应。利用BEC的激发模拟量子比特（杂质原子）的环境影响，发展量子消相干和量子速度极限时间的操控理论，提出加快量子系统动力学演化速度甚至实现量子速度极限演化的新方案，揭示量子相干性、量子速度极限时间和环境的非马尔科夫性之间的联系。这些研究对于量子物理和量子信息基础研究具有重要的科学意义和潜在应用价值。

Combine an atomic Bose-Einstein condensate (BEC) with a optical cavity or an atomic/ionic impurity to form a BEC hybrid quantum system with the strong coupling.The BEC hybrid quantum systems is providing a ideal platform for studying fundamental problems in quantum mechanics, generating and manipulating various quantum effects, and developing concepts in quantum information processing..due to the superb controllability of both the confining potential geometry and the interatomic interaction. Based two classes of BEC hybrid quantum systems, the cavity BEC hybrid system and the impurity-atom/ion dopped BEC hybrid system, In this project we will investigate physical mechanisms to produce and manipulate quantum coherence of these BEC hybrid systems, propose new schemes to create macroscopic-microscopic and microscopic-microscopic quantum entanglement,reveal new and exotic quantum phenomena in these BEC hybrid systems. We want to develop new theories to control quantum decoherence by making use of a BEC to simulate quantum reservoir of impurities. We will study quantum evolution speed limit time and dynamical evolution of the BEC hybrid systems, and explore possible approach to accelerate dynamical evolution and even reach to quantum evolution speed limit of a quantum system, and reveal connections among quantum coherence, quantum evolution speed limit time, and quantum non-Markovian degree of the reservoir.