演生对称性是凝聚态物理研究中非常重要的概念，但是在实验中很难观测到演生的高对称性。Shastry-Sutherland 磁性材料具有非常强的竞争相互作用，提供了通过量子相变研究对称性及其演化的良好材料。我们计划借助核磁共振能够和多种自由度耦合的特性，探索这些材料中晶格和磁性之间的耦合导致的基态特性，以及可能隐藏的对称破缺；结合我们特色的高压、高磁场、稀释制冷等极端条件下的核磁共振，通过调控产生的量子相变，研究其低能动力学性质和标度行为等，探索临界点附近演生的高对称性和解禁闭的分数元激发，促进对超越朗道理论范式的量子磁性和强关联拓扑现象的理解。

Emergent symmetry is a very important concept in condense matter physics. However, emergent high symmetries are difficult to observe experimentally. Shastry-Sutherland magnetic materials, with geometrical frustration, provide a good system for studying emergent symmetries due to its competing interactions. We plan to use NMR, which can be coupled to many degrees of freedom of electrons, to explore the ground state properties caused by the coupling between the lattice and the magnetism, as well as possible hidden symmetry breaking. Combined with NMR measurements and extreme conditions, such as high pressure, high field, doping and ultralow temperature, we tune the quantum phase transitions and study the behaviors of the low-energy dynamic properties and scaling behaviors. By this, we explore emergent high symmetries and deconfined fractional excitations near quantum critical points. This research will promote the understanding of quantum magnetism and strongly correlated topological phenomena beyond the Landau paradigm.