Jiaying Yang, Axel Eriksson, Mohammed Ali Aamir, Ingrid Strandberg, Claudia Castillo Moreno, Daniel Perez Lozano, Per Persson, Simone Gasparinetti

Physical Review Applied 20, 054018 (2023)

Preprint Published version

Distributed quantum computing relies on quantum channels linking distant processors, requiring reliable photon generation from stationary qubits. We demonstrate a superconducting circuit that transfers a qubit state into a traveling microwave photon with 94.5% fidelity. Using a time-varying parametric drive, we shape the photon’s temporal profile for efficient, phase-stable absorption. This high-fidelity method enables robust state transfer and remote entanglement, advancing scalable distributed quantum computing.