Quantum spin systems have long been important in the field of condensed matter physics, and even today they are actively studied both experimentally and theoretically as a stage for novel magnetic phenomena such as quantum spin liquids and spin liquid crystals.
Since 2005, the meeting has been held in San-in, Hokuriku, Echigo, Hokusetsu, Tokai-mura, and other places almost every winter, with many participants and more and more active discussions. Although the meeting has been held at various locations in past years, this year, due to the spread of the coronavirus, it will be held in a hybrid format with on-site presentations in Naha City, Okinawa Prefecture, and webcasting using Zoom. We would be happy if you could provide us with recent topics from a broad perspective, not limited to quantum spin systems.