A description of $(C_p[L_p(M)], R_p[L_p(M)])_\theta$
  We give a simple explicit description of the norm in the complex interpolation space $(C_p[L_p(M)], R_p[L_p(M)])_\theta$ for any von Neumann algebra $M$ and any $1\le p\le\infty$. 
Quanhua Xu