Metaverse is an immersive shared space that remote users can access through virtual and augmented reality interfaces, enabling their avatars to interact with each other and the surrounding. Although digital objects can be manipulated, physical objects cannot be touched, grasped, or moved within the metaverse due to the lack of a suitable interface. This work proposes a solution to overcome this limitation by introducing the concept of a Physical Metaverse enabled by a new interface named "Avatarm". The Avatarm consists in an avatar enhanced with a robotic arm that performs physical manipulation tasks while remaining entirely hidden in the metaverse. The users have the illusion that the avatar is directly manipulating objects without the mediation by a robot. The Avatarm is the first step towards a new metaverse, the "Physical Metaverse", where users can physically interact each other and with the environment.

翻译：元宇宙是一种沉浸式共享空间，远程用户可通过虚拟现实和增强现实接口接入，使其化身在空间内相互交互并作用于周围环境。尽管数字对象可被操控，但受限于接口缺失，元宇宙中的物理对象无法被触摸、抓取或移动。本研究提出一种解决方案以突破该限制：通过名为"Avatarm"的新接口构建实体元宇宙概念。Avatarm由融合机械臂的增强型化身构成，该机械臂可在完全隐于元宇宙的前提下执行物理操控任务。用户将产生化身直接操控对象而无须机器人中介的错觉。Avatarm是迈向"实体元宇宙"这一新型元宇宙的第一步——在该空间中，用户能够彼此及与环境进行物理交互。