  We prove that the length of any gap in the differential grading of the
Khovanov homology of any quasi-alternating link is one. As a consequence, we
obtain that the length of any gap in the Jones polynomial of any such link is
one. This establishes a weaker version of Conjecture 2.3 in [5]. Moreover, we
obtain a lower bound for the determinant of any such link in terms of the
breadth of its Jones polynomial. This establishes a weaker version of
Conjecture 3.8 in [17]. The main tool in obtaining this result is establishing
the Knight Move Conjecture [2,Conjecture 1] for the class of quasi-alternating
links.

Geometric Topology