Incompatible measurements in quantum information science

Understand

Some measurements in quantum mechanics disturb each other.

• This has puzzled physicists since the formulation of the theory, but only in recent decades has the incompatibility of measurements been analyzed in depth and detail, using the notion of joint measurability of generalized measurements.
• In this Colloquium joint measurability and incompatibility are reviewed from the perspective of quantum information science.
• The Colloquium starts by discussing the basic definitions and concepts.