(quantum mechanics) The entropy of a quantum state. If the state is expressed as a quantum density matrix 𝜌, then this entropy can be expressed mathematically as S=-tr(𝜌 log 𝜌) where tr is the trace operator and the logarithm is natural.

Alternative form of high-entropy alloy

Alternative form of high-entropy alloys plural of high entropy alloy

plural of high-entropy alloy

(metallurgy) a type of metallic alloy containing not one dominant element, but multiple major elements, with a single crystalline structure and existing in a single phase

Resembling or characteristic of entropy.

Without entropy.