Virtual Reality (VR), Augmented Reality (AR), Mixed Reality (MR), digital twin, Metaverse and other related digital technologies have attracted much attention in recent years. These new emerging technologies are changing the world significantly. This research introduces a fusion model, i.e. Fusion Universe (FU), where the virtual, physical, and cognitive worlds are merged together. Therefore, it is crucial to establish a set of principles for the fusion model that is compatible with our physical universe laws and principles. This paper investigates several aspects that could affect immersive and interactive experience; and proposes the fundamental principles for Fusion Universe that can integrate physical and virtual world seamlessly.

翻译：虚拟现实（VR）、增强现实（AR）、混合现实（MR）、数字孪生、元宇宙及其他相关数字技术近年来备受关注。这些新兴技术正深刻改变着世界。本研究提出一种融合模型，即融合宇宙（Fusion Universe, FU），其中虚拟世界、物理世界与认知世界相互融合。因此，建立一套与物理宇宙规律及原理相兼容的融合模型原则至关重要。本文探讨了可能影响沉浸式交互体验的若干方面，并提出了能够无缝整合物理世界与虚拟世界的融合宇宙基本原理。