In 2003, Eunseong Kim and Moses Chan at Pennsylvania State University found an evidence for possible superfluidity in solid helium 4 at temperatures below 0.2 K. The superfluid solid, so called “supersolid” state, was first predicted 40 years ago, yet it was not observed. The discovery of Kim and Chan has sparked a number of studies not only in helium 4 but also other condensed matter systems.

The aims of this workshop are to discuss the recent progress and novel approaches in supersolid research, and various topics related to physics of supersolid. The following research areas are covered:
(1) Solid helium 4
(2) Helium in low dimensions and in porous media
(3) Spin systems
(4) Trapped ultracold atoms, especially in optical lattices
(5) Correlated electron systems

This workshop will be held as an activity of the research project "Physics of New Quantum Phases in Superclean Materials (PSM)", a Grant-in-Aid for Scientific Research on Priority Areas by MEXT (Ministry of Education, Culture, Science, Sports and Technology). For details of the project, visit the website:
http://www.superclean-materials.jpn.org/e_index.htm