Hilbert space factorization and partial measurements

• A quantum system whose state vector belongs to a finite-dimensional Hilbert space is considered. If this space has a dimension that is a composite number, one can factor the space into a tensor product of subspaces. An observable that acts only in one of these subspaces is called a partial measurement. Some of the properties and the interpretation of such partial measurements are discussed.

Keyword

quantum-mechanics

state determination

cryptography

Publication and Content Type

ref (subject category)

art (subject category)