Rotated_lorentz

Hi,Mark.
There is a problem about rotated_lorentz.
The length of three vectors is 10(just like x(10), y(10) and z(10), x>=0,y>=0,z>=0).
And I want to express a constraint which is x(i)<=(y(i)*z(i))^0.5 (i=1,2,3…10). I want to know how to express the constraint by rotated_lorentz without loop(such as for loop),because using loop in cvx will extend running time of program largely.
Thank you.