0.0 0.5 1.0 1.5 2.0 0.5 1.0 1.5 2.0 PSfrag replacements η/s T/T$_{F}$ FIG. 10: The ratio η/s as a function of T/T$_{F}$ for attractive fermions. The scaling function b has the same expression as in eq. (55), with the above c . The density now is The energy per particle scaling functions now take the form: For this bosonic case, there is only a solution to eq. (83) for z ≤ z$_{c}$ ≈ . 34, or µ/T ≤ − 1 . 08. The density is shown in Figure 13, and note that it has a maximum. and n = − mT 2 π log(1 − zy ) (85) ˜ ξ = − 2 log(2) c log(1 − zy ) (86) ξ = ( log z log(1 − zy ) ) 2 b (87) 30