Multicopy teleportation and quantum program retrieval on superconducting quantum hardware

arXiv:2611.00874v1 Announce Type: new Abstract: Correction-free teleportation protocols offer a probabilistic route around the limits imposed by the quantum no-programming theorem, but have remained largely theoretical. Here, we experimentally implement and benchmark correction-free multicopy teleportation on noisy superconducting quantum hardware. Key to this is an efficient circuit implementation: by suitably decomposing the unitary that maps the multicopy measurement basis onto the computational basis, we substantially reduce circuit depth and gate count. For one- and two-qubit input states, using $k=2$ and $3$ copies, we observe success probabilities substantially exceeding the single-copy bound with fidelities above 0.85.