We construct new Carroll strings in flat space by considering the Carroll limit of equivalent relativistic string theories at classical level. In the limit these Carroll strings are no longer equivalent and have different degrees of freedom. This fact is due to a general phenomenon that the configuration space and canonical Lagrangians are no longer equivalent after a singular redefinition of the variables and of the parameters of the starting Lagrangians.
Carrollian Worldsheets on Carrollian Targets, When does ILST describe a null string theory?
School of Physics, Institute for Research in Fundamental Sciences (IPM)（基础科学研究所物理学院）；Beijing Institute of Mathematical Sciences and Applications (BIMSA)（北京数学与应用数学研究所）
Null Strings Gauged and Reloaded, I: Null Strings Have Carroll-Weyl Gauge Symmetry
School of Physics, Institute for Research in Fundamental Sciences (IPM)（基础科学研究所物理学院）；Beijing Institute of Mathematical Sciences and Applications (BIMSA)（北京数学科学与应用研究院）
Null Strings Gauged and Reloaded, II: Consistent Classical Treatment of the Null Strings
School of Physics, Institute for Research in Fundamental Sciences (IPM)（基础科学研究所物理学院）；Beijing Institute of Mathematical Sciences and Applications (BIMSA)（北京国际数学研究中心）
Path integral quantization of null bosonic strings with Carroll-Weyl ghosts
Yau Mathematical Sciences Center (YMSC), Tsinghua University（丘成桐数学科学中心，清华大学）；Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute（哈里什-昌德拉研究所，霍米·巴巴国立学院下属机构）
School of Physics, Institute for Research in Fundamental Sciences (IPM)（基础科学研究院物理学院）；Beijing Institute of Mathematical Sciences and Applications (BIMSA)（北京数学科学及应用研究院）
Indian Institute of Technology Kanpur（坎普尔印度理工学院）；University of Victoria（维多利亚大学）；Chennai Mathematical Institute（金奈数学研究所）；Homi Bhabha National Institute（霍米·巴巴国立研究所）；The Institute of Mathematical Sciences（数学科学研究所）
BRST quantization of Carroll-Weyl gauged null strings
Yau Mathematical Sciences Center (YMSC), Tsinghua University（清华大学丘成桐数学科学中心）；Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute（哈里什-昌德拉研究所，霍米·巴巴国立学院成员机构）
Carrollian limit of NS-NS and Heterotic Supergravity
Universidad San Sebastián, Facultad de Ingeniería（塞巴斯蒂安大学工程学院）；University of Wroclaw, Faculty of Physics and Astronomy（弗罗茨瓦夫大学物理与天文学学院）；Universidad Nacional Autónoma de México, Departamento de Física de Altas Energías, Instituto de Ciencias Nucleares（墨西哥国立自治大学高能物理系核科学研究所）
Covariant Phase Space and Carroll-Weyl $χ$ Symmetry of Carroll Non-BPS D$_p$-branes
School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS（杭州高等研究院基础物理与数学学院，UCAS）；Hangzhou Institute for Advanced Study, UCAS（杭州高等研究院，UCAS）；Institute of Theoretical Physics, Chinese Academy of Sciences（中国科学院理论物理研究所）；University of Chinese Academy of Sciences（中国科学院大学）
Indian Institute of Technology Kanpur（坎普尔印度理工学院）；Birla Institute of Technology and Science, Pilani Campus（比拉理工学院皮拉尼校区）；Beijing Institute of Mathematical Sciences and Applications（北京数学科学研究所）；Tata Institute of Fundamental Research（塔塔基础研究所）
From Galilei to Euclidean Carroll and the Alice Particle: The Times They Are a-Changin'
Van Swinderen Institute, University of Groningen（格罗宁根大学范斯温德伦研究所）；Departamento de Electromagnetismo y Electrónica, Universidad de Murcia（穆尔西亚大学电磁学与电子系）；Division of Theoretical Physics, Rudjer Bošković Institute（鲁德·博什科维奇研究所理论物理部）；Department of Physics, Faculty of Science, University of Zagreb（萨格勒布大学理学院物理系）
探讨广义伽利略极限中光速 c 的变化，通过允许世界体积为欧几里得，使 p 膜伽利略极限变为卡罗尔极限，统一了伽利略和卡罗尔极限方法，还研究了其后果及相关代数和粒子行动。
Carroll Limit of $\mathcal{O}(F^2)$ $\text{D}_p$-branes from Kaluza--Klein-like Null reduction in the Polyakov Formulation
Hangzhou Institute for Advanced Study, UCAS（杭州高等研究院，中国科学院大学）；Institute of Theoretical Physics, Chinese Academy of Sciences（中国科学院理论物理研究所）；University of Chinese Academy of Sciences（中国科学院大学）
Null-strings Gauged, Reloaded and Quantized, I: Canonical Quantization in the Light-Cone Gauge
School of Physics, Institute for Research in Fundamental Sciences (IPM)（基础科学研究所物理学院）；Beijing Institute of Mathematical Sciences and Applications (BIMSA)（北京数学与应用科学研究）
Indian Institute of Technology Kanpur（坎普尔印度理工学院）；Birla Institute of Technology and Science, Pilani Campus（比拉理工科学与技术学院皮拉尼校区）；Asia Pacific Center for Theoretical Physics, Postech（韩国高等科学技术研究所亚太理论物理中心）；University of Victoria（维多利亚大学）；Saha Institute of Nuclear Physics（萨哈核物理研究所）；Homi Bhabha National Institute（霍米·巴巴国立研究所）
