讲座简介：In this talk, we define and study Clifford quadratic complete intersections. After showing some properties of Clifford quantum polynomial algebras, we show that there is a natural one-to-one correspondence between Clifford quadratic complete intersections and commutative quadratic complete intersections. Then we show that every Clifford quadratic complete intersection has a point variety in the sense of Artin, Tate and Van den Bergh, and provide a calculation method of point varieties. As an application, we give the complete classification of Calabi-Yau conics. This is a joint work with Izuru Mori (Shizuoka University).