The Pauli gate is defined by its action on the computational basis states

In PennyLane, you can implement it by calling qml.PauliZ. It has the following circuit element:

Write a QNode that applies qml.PauliZ to the state and returns the state. What state is this? How do the measurement probabilities differ from those of the state

or to submit your code

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Learning Objectives:

  • Distinguish between global and relative phases.
  • Describe the action of the RZ gate and its matrix representation.
  • Identify 3 special cases of RZ.