The IceCube Neutrino Observatory in the South Pole, Antarctica, is designed to detect high-energy astrophysical neutrinos. It consists of an array of 8,160 digital optical modules (DOMs) distributed in the Antarctic ice to cover roughly one kilometer cubic volume, making the largest neutrino detector in the world. Astrophysical neutrinos are special astrophysical messengers because they are the highest energy particles propagating the longest distance in the Universe. These features are also important in studying fundamental physics, such as space-time symmetry and the presence of new particles. The EPAP group is an active member of IceCube, focusing on the search of new physics through astrophysical neutrinos and future upgrades of IceCube (IceCube-Gen2).