More Super Schrödinger Algebras from Psu(2,2|4)

We discuss super Schrödinger algebras with less supercharges from N=4 superconformal algebra psu(2,2|4). Firstly N=2 and N=1 superconformal algebras are constructed from the psu(2,2|4) via projection operators. Then a super Schrödinger subalgebra is found from each of them. The one obtained from N=2 has 12 supercharges with su(2)2×u(1) and the other from N=1 has 6 supercharges with u(1) . By construction, those are still subalgebras of psu(2,2|4). Another super Schrödinger algebra, which preserves 6 supercharges with a single u(1) symmetry, is also obtained from N=1 superconformal algebra su(2,2|1). In particular, it coincides with the symmetry of N=2 non-relativistic Chern-Simons matter system in three dimensions.