Author(s) :

Nathan Niklewski.

Volume/Issue :

Abstract :

Identifying dominant noise mechanisms is a central challenge in today’s noisy quantum devices, where every operation is affected by hardware imperfections. To investigate how noise manifests in quantum operations, this study employed a three-qubit teleportation circuit as an experimental probe. Ideal simulations, noisy simulations in Qiskit Aer (readout misassignment, depolarizing, biased Pauli, thermal relaxation), and runs on IBM Brisbane were compared after applying standard X and Z corrections in post-processing. Distinct patterns in the bitstring distributions showed that IBM hardware is dominated by readout-driven effects with mild bias in Pauli error probabilities. A short teleportation “probe” thus provides a simple, circuit-specific diagnostic test to guide noise mitigation. This study aims to determine whether bitstring distributions can serve as fingerprints for identifying dominant noise sources in quantum teleportation circuits.