Rvalue reference in C++ is a reference that binds only to temporary objects and is declared with double ampersands (&&).
Using move in C++ involves transferring resources instead of copying, reducing overhead by avoiding unnecessary memory allocations and copies.
The move process nullifies the original object's pointer to prevent access to the moved resource, resembling a shallow copy but with a crucial difference.
Move constructors in C++11 help transfer resources efficiently, avoiding issues like double deletion associated with shallow copying.