Implementing phase-covariant cloning in circuit quantum electrodynamics

• Published in: Annals of physics Vol. 373; pp. 512 - 520
• Main Authors: Zhu, Meng-Zheng, Ye, Liu
• Format: Journal Article
• Language: English
• Published: New York Elsevier Inc 01.10.2016; Elsevier BV
• Subjects: CAVITY RESONATORS; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; LOGIC CIRCUITS; Numerical analysis; Quantum cloning machine; Quantum communication security; QUANTUM CRYPTOGRAPHY; QUANTUM ELECTRODYNAMICS; Quantum information; Quantum physics; QUBITS; Quantum information; Quantum communication security; Quantum cryptography; Quantum cloning machine

An efficient scheme is proposed to implement phase-covariant quantum cloning by using a superconducting transmon qubit coupled to a microwave cavity resonator in the strong dispersive limit of circuit quantum electrodynamics (QED). By solving the master equation numerically, we plot the Wigner funct...