U | t | 0 | 0 | 0 | -(Sqrt[3]*t) | 0 | Sqrt[3]*t |
t | U | 0 | 0 | Sqrt[6]*t | 0 | 0 | 0 |
0 | 0 | 3*U | 0 | -(Sqrt[2]*t) | 0 | Sqrt[2]*t | 0 |
0 | 0 | 0 | 2*U | 0 | 0 | 0 | 2*t |
0 | Sqrt[6]*t | -(Sqrt[2]*t) | 0 | 2*U | 0 | 0 | Sqrt[2]*t |
-(Sqrt[3]*t) | 0 | 0 | 0 | 0 | 2*U | Sqrt[2]*t | 0 |
0 | 0 | Sqrt[2]*t | 0 | 0 | Sqrt[2]*t | 2*U | 0 |
Sqrt[3]*t | 0 | 0 | 2*t | Sqrt[2]*t | 0 | 0 | U |