As part of the program (situated in Toronto), you get both financial and hardware support. Financial support is in the form of a pre-seed SAFE from VC funds (Bloomberg Beta, Data Collective and Spectrum 28). Hardware partners include Rigetti computing and D-Wave, providing training and access to the hardware.
The program starts with a month long bootcamp, providing scientific and business advice. The science part is lead by actual scientists working in the field (Peter Wittek, Seth Lloyd, Michele Mosca, Roger Melko [1]).
Once you are accepted and your venture is established, you are periodically mentored in 2-month intervals when the "CDL sessions" take place. You get 1-on-1 meetings with accomplished business mentors / VCs / scientists, who can volunteer to work with you over the next 2-month sprint and set your objectives. Companies not attracting any attention from mentors are eventually cut.
The QML incubator is one of several streams under the Creative Destruction Lab, and they are open to international applicants (although they are encouraged to apply sooner). The deadlines are May 10th and May 31st.
If you have questions, comment here, and I'll do my best to answer with the insider knowledge obtained over the past year.