The GENERAL CONTEXT of such use is:
Quantum Mechanics versus Quantum Physics:
Whereas most of the Physics fields/disciplines might use these two terms interchangeably in referring to the same thing, according to this specific Definition they are definitely not the same.

Quantum Mechanics (1) nominally comes from, and defines accordingly, any and all Corporeal Physics matters, from the perspective of Classical Newtonian Physics, and (2) limits itself to the quantum realms and all Physical Realities appearing and occurring within the Reality of Corporeality.

Quantum Physics, however, defines and explains the details of the quantum realms of both Corporeality and Incorporeality, but concentrates primarily on those 'Realities' of Incorporeality which are relevant to the creation of Reality within Corporeality! This Definition of Quantum Physics references and derives from QUFD Physics and not from Classical Newtonian Physics, which is thereby considered to be obsolete.

Both terms apply, accordingly, to Physicists and Investigators/Researchers who deal with concerns within the various realms of Physics. Physicists who limit themselves only to matters of Corporeality in their investigations of Reality, not deigning to cross-over to Incorporeality in any way, are nominally considered to be Quantum 'Mechanics', who seek only 'mechanical' or corporeal resolution to their investigations, foregoing any non-mechanical, incorporeal possibilities!

Physicists who open themselves to all 'matters' and possibilities of both Corporeality and Incorporeality, are Quantum Physicists! They are truly willing to explore all the quantum possibilities of both Reality and 'Reality', on both sides of that invisible Fence separating the Known from the Unknown!

Also, Quantum Physics does thusly refer primarily to QUFD Physics and all derivative Disciplines, Sciences and Philosophies!