#### 3.3 Slit Confinement - Chain in Uniaxial Confinement

The blob length scale is set by the size of the slit, D. The polymer chain executes a random walk within the slit,
with a radius (2-dimensional) given by

| (11) |

That is, the result is as above. We will see later that for real chains which make a self-avoiding random
walk/possess excluded volume interactions, this will not be the case.