Lifting cosmic degeneracy within a single quasar survey

In the almost Friedmann-Lemaitre model of the Universe, the density paramet er, Omega (m), and the cosmological constant, Omega (Lambda), measure curva ture. Several linearly degenerate relations between these two parameters ha ve recently been measured. Here, large scale structure correlations at simi lar to 100-150h(-1) Mpc are found in the comoving three-dimensional separat ions of redshift z approximate to 2 quasars. These function as a comoving s tandard rod of length L-LSS approximate to 130 +/- 10h(-1) Mpc. A local max imum in the correlation function at approximate to L-LSS/2 also appears to be significant. By combining separate radial and tangential standard ruler analyses, the lifting of the Omega (m) - Omega (Lambda) linear degeneracy w ithin a single data set is demonstrated for the first time.