NOT and CNOT gates for photon logical qubits on different frequency states

19th International Youth School on Coherent Optics and Optical Spectroscopy

Akbari, M.^1 ; Andrianov, S.N.^2 ; Kalachev, A.A.^1,2,3

Kazan Federal University, 18 Kremlyovskaya St, Kazan

420008, Russia^1

Institute for Perspective Research, Tatarstan Academy of Sciencies, 36a Levobulachnaya St, Kazan

420011, Russia^2

Zavoisky Physical-Technical Institute, 10/7, Sibirsky tract, Kazan

420029, Russia^3

关键词: CNOT gate;    Different frequency;    Effective Hamiltonian;    Efficient protocols;    Logical qubits;    Photon frequency;    Quantum-information processing;    Three level atoms;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/714/1/012002/pdf
DOI  :  10.1088/1742-6596/714/1/012002

来源: IOP

【 摘 要 】

Starting from Hamiltonian of three level atom interacting with photons, we calculate effective Hamiltonian by Schrieffer-Wolff transformation. We obtain the operation of photon frequency conversion solving appropriate Schrodinger equation. Based on this operation, an efficient protocol is proposed for implementing quantum NOT and CNOT gates for applications in quantum information processing.