Social physics is an active and diverse field in which many scientists with formal training in physics study a broad class of complex social phenomena. Social physics investigates societal problems but most often does not count on the active and conscious participation of the citizens. We here want to support the idea that citizen science, and more particularly citizen social science, can contribute to the broad field of social physics. We do so by sharing some of our own experiences during the last decade. We first describe several human mobility experiments in urban contexts with the participation of concerned young students, old women or other different groups of neighbours. We second share how we have studied community mental health care provision in collaboration with a civil society organisation and with the intense involvement of persons with lived experience in mental health. In both cases, we narrow down the discussion to digital tools being used and the involved participatory dynamics. In this way, we share key learnings to enhance a synergistic relationship between social physics and citizen science and with the aim increase the societal impact of the research on complex social phenomena.

翻译：社会物理学是一个活跃且多元的领域，许多接受过物理学正规训练的科学家在此研究广泛而复杂的社会现象。该领域致力于探究社会问题，但通常并未依赖公民的主动且有意识的参与。本文旨在支持以下观点：公民科学，特别是公民社会科学，能够为广阔的社会物理学领域做出贡献。为此，我们分享了过去十年间自身的部分实践经验。首先，我们描述了在城镇背景下开展的多项人类流动性实验，这些实验涉及相关年轻学生、老年妇女或其他不同邻居群体的参与。其次，我们介绍了如何与民间社会组织合作，并在具有心理健康亲身经历者的深度参与下，研究社区心理卫生保健的供给。在这两个案例中，我们将讨论聚焦于所使用的数字工具以及涉及的参与动态。通过这种方式，我们分享了关键经验教训，以促进社会物理学与公民科学之间的协同关系，并旨在提升关于复杂社会现象研究的社会影响力。