https://doi.org/10.1140/epjd/e2012-30611-5
Regular Article
Controllable operation for distant qubits in a two-dimensional quantum network
1 Department of PhysicsFuzhou
University, Fuzhou
350002, P.R.
China
2 School of Physics and Optoelectronics
Technology, Fujian Normal University, Fuzhou
350007, P.R.
China
3 Key Laboratory of Quantum
Information, University of Science and Technology of China,
CAS, Hefei
230026, P.R.
China
a e-mail: zhirz@fzu.edu.cn
b
e-mail: zbyangmk@gmail.com
Received:
4
October
2012
Published online:
21
December
2012
We propose a theoretical scheme to realize the coherent coupling of multiple atoms in a quantum network which is composed of a two-dimensional (2D) array of coupled cavities. In the scheme, the pairing off-resonant Raman transitions of different atoms, induced by the cavity modes and external fields, can lead to selective coupling between arbitrary atoms trapped in separated cavities. Based on this physical mechanism, quantum gates between any pair of qubits and parallel two-qubit operations can be performed in the 2D system. The scheme provides a new perspective for coherent manipulation of quantum systems in 2D quantum networks.
Key words: Quantum Optics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2012