Below is the code which can be used to create a tensor with zero values:

`torch.zeros(n, k)`

Example:

`torch.zeros(3, 3)`

With the above example, we created a tensor of 3×3 size with zero values.

Complete sample code:

```
import torch
my_tensor = torch.zeros(3, 3)
print(my_tensor)
```

Output:

```
tensor([[0., 0., 0.],
[0., 0., 0.],
[0., 0., 0.]])
```