Rationale
Condensed matter is formed when the interaction between building units dominates over the thermal fluctuation at low temperature, in either a liquid state or a solid one. Quakes occurring in solid bodies are commonly controlled by slow elastic loading and fast unstable release, which is a common phenomenon in gravity dominated planets (e.g. Earth and Mars), as well as the main topic in solid geophysics. Nevertheless, both atomic nucleus at gravity free and neutron star gravity-bound are condensed by the fundamental strong interaction, while normal matter is by the electromagnetic force. Neutron star will also break when its gravity load reaches a limit, and it is then natural that quake occurs on compact stars too, which could be responsible for a variety of extreme events in astrophysics (e.g., pulsar glitches, fast radio bursts, and bursts and flares of neutron stars).
当组分之间的相互作用超过热涨落时将形成凝聚态物质，表现为低温下的液态或固态。地震体现为缓慢弹性加载超过固体弹性极限后的短时间内发生的失稳破裂，在万有引力主导的星体（如地球、火星）中普遍发生。这是固体地球物理学的重要课题。不过，正常物质是被电磁力凝聚的，而无引力的原子核和引力束缚的中子星却都由基本强力所凝聚。在重力加载达到强力的极限时中子星也会发生破裂，是故，致密星上发生星震也很自然。这类星震很可能是众多极端天体物理事件的诱因，包括脉冲星周期跃变、快速射电暴、中子星暴发或耀发，等等。
We are organizing a conference “Quakes: from the Earth to Stars” at the Dream Field near the FAST site, from May 20 to 23, 2023. Certainly, this invitation-only meeting is to provoke discussion and to foster collaboration, focusing on the quakes of compact stars.
为此，我们将于2023年5月20日至23日在FAST现场附近的“桃源洞”举办题为“从地震到星震”的研讨会。诚然，此次会议是为了激发讨论和促进合作，重点关注致密星的地震过程。