Can a universal quantum cloner be used to design an experimentally feasible near-deterministic CNOT gate?

TitleCan a universal quantum cloner be used to design an experimentally feasible near-deterministic CNOT gate?
Publication TypeJournal Article
Year of Publication2019
AuthorsGueddana, A., P. Gholami, and V. Lakshminarayanan
JournalQuantum Information Processing
Volume18
KeywordsCloning, 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
Abstract

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.

DOI10.1007/s11128-019-2339-x