|Title||Can a universal quantum cloner be used to design an experimentally feasible near-deterministic CNOT gate?|
|Publication Type||Journal Article|
|Year of Publication||2019|
|Authors||Gueddana, A., P. Gholami, and V. Lakshminarayanan|
|Journal||Quantum Information Processing|
|Keywords||Cloning, CNOT gate, Electrospinning, Logic gates, Magnetic moments, Nanocrystals, Optical microcavities, Particle beams, Photonic CNOT gate, Photonic devices, Photonic qubits, Photons, Quantum computing circuits, Quantum dot, Quantum dot spins, Quantum optics, Quantum switch, Qubits, Semiconductor quantum dots, Single photons, Universal cloner|
We propose a non-deterministic CNOT gate based on a quantum cloner, a quantum switch based on all optical routing of single photon by single photon, a quantum dot spin in a double-sided optical microcavity with two photonic qubits, delay lines and other linear optical photonic devices. Our CNOT provides a fidelity of 78% with directly useful outputs for a quantum computing circuit and requires no ancillary qubits or electron spin measurements. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.