# A Is block spin still ±1?

1. May 18, 2018

### howl

When one applies block spin scheme on Ising model, what's the value for block spin? If we set the average value for spin in a block, it should not be ±1 anymore. But if so, is the transfer matrix is still two dimensional?

2. May 19, 2018

### atyy

Last edited: May 19, 2018
3. May 19, 2018

### howl

4. May 19, 2018

### atyy

Last edited: May 19, 2018