A path graph state simulates a sequence of Clifford gates , , using fixed equatorial qubit measurement bases on successive path vertices. Let be raw outcomes, , and start the Pauli frame at . Matrix commutation and giveInduction shows the final unmeasured state differs from the ideal circuit output by , up to global phase. A final computational basis result is corrected to . All bases are fixed, and projectors on distinct vertices commute, so all measurements, including the final one, can occur in a single layer. The frame recurrence is classical outcome processing, not quantum feed-forward.
Compile each CNOT gate into a Hadamard gate, a Controlled-Z gate, and another Hadamard gate on its target. Every one-bit teleportation implementing a Hadamard gate uses a fixed angle-zero basis. A Pauli frame propagates by classical binary updates without changing a measurement basis. All internal measurements, and any fixed computational output measurements, therefore share one simultaneous layer. Resource preparation and classical processing are not included in this logical measurement depth.
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