Quantum information theory

information that is held in the state of a quantum system

In functional analysis and quantum information science, a positive operator-valued measure (POVM) is a measure whose values are positive semi-definite operators on a Hilbert space. POVMs are a generalization of projection-valued measures (PVM) and, correspondingly, quantum measurements described by POVMs are a generalization of quantum measurement described by PVMs (called projective measurements).

highly entangled quantum state of 3 or more qubits

quantum analog of probabilistic automata

theorem in complexity theory that every problem in NP has probabilistically checkable proofs

application of quantum mechanics to cognitive phenomena

entangled 3-qubit quantum state

process in linear algebra