During his time at Stockholm University, Arvai participated in the 12 month Vulcanus in Japan programme, established by the EU and the Japanese Ministry of Economy, Trade and Industry.
A Stockholm Egyetemen Árvai részt vett az EU és a Japán Gazdasági, Kereskedelmi Minisztérium által létrehozott 12 hónapos  Vulcanus Japánban programban.