We present ALMA observations of the [ CII ] 158 \mu m fine structure line and dust continuum emission from two quasars , SDSS J104433.04-012502.2 and SDSS J012958.51-003539.7 , at z=5.78 .
The ALMA observations at 0.2 ^ { \prime \prime } resolution map the dust and gas on kpc scales .
The spatially resolved emission show a similar trend of increasing [ CII ] -FIR ratios with decreasing FIR surface brightnesses toward larger radii as was found in the infrared luminous galaxies with intense star formation .
We confirm the velocity gradients of [ CII ] emission found previously in SDSS J0129-0035 .
No evidence of order motion is detected in SDSS J1044-0125 .
The velocity maps and PV-diagrams also suggest turbulent gas clumps in both objects .
We tentatively detect a [ CII ] peak offset 4.9 kpc to the East of SDSS J1044-0125 .
This may be associated with an infalling companion , or node of gas outflows .
All these results suggest significant dynamical evolution of the ISM in the nuclear region of these young quasar-starburst systems .
We fit the velocity map of the [ CII ] emission from SDSS J0129-0035 with a rotating disk model .
The result suggests a face-on system with an inclination angle of 16 \pm 20 ^ { \circ } and constrains the lower limit of the host galaxy dynamical mass to be 2.6 \times 10 ^ { 10 } M _ { \odot } within the [ CII ] emitting region .
It is likely that SDSS J0129-0035 , as well as other young quasars with super massive black hole masses on order of 10 ^ { 7 } M _ { \odot } to 10 ^ { 8 } M _ { \odot } , falls close to the black hole and host galaxy mass relation defined by local galaxies .