2022-11-07

UTAPwiki/セミナー/初期宇宙・相対論速報

Title: Charge teleportation †

Speaker: Fumio Uchida †

Magnetic monopoles could have electric charges at the same time as their magnetic charges, and they are called dyons when their electric charges are non-zero. As a generalization of Dirac’s quantization condition [1], Witten showed that electric charges of dyons are related to the CP-violating theta term (Witten effect) [2]. Its consequences in the presence of axion-photon coupling are discussed in, e.g., [3]. Among them, I will introduce charge teleportation between a dyon and an axion string [4].

[1] Dirac 1931 (https://royalsocietypublishing.org/doi/abs/10.1098/rspa.1931.0130)
[2] Witten 1979 (https://www.sciencedirect.com/science/article/abs/pii/0370269379908384)
[3] Fischler–Preskill 1983 (https://www.sciencedirect.com/science/article/abs/pii/0370269383912601), Sikivie 1984 (https://www.sciencedirect.com/science/article/abs/pii/0370269384917313)
[4] Fukuda–Yonekura 2020 (https://arxiv.org/abs/2010.02221)