Pauli matrix

noun

(mathematics) Any one of three complex matrices that arise in Wolfgang Pauli's treatment of spin in quantum mechanics.

The Pauli matrix is a fundamental concept in quantum mechanics.

意味（1）

(mathematics) Any one of three complex matrices that arise in Wolfgang Pauli's treatment of spin in quantum mechanics.

The Pauli matrices satisfy the equation 𝜎₁²=𝜎₂²=𝜎₃²=-i𝜎₁𝜎₂𝜎₃=I which is reminiscent of Hamilton's fundamental formula for quaternion multiplication.