Open AccessOne-way quantum state transfer in a lossy coupled-cavity array
Author(s) -
Dongxiao Li,
Xian-Miao Liao,
XiaoQiang Shao
Publication year - 2019
Publication title -
optics express
Language(s) - Italian
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.035971
Subject(s) - adiabatic process , dissipation , physics , quantum , quantum state , quantum information science , lossy compression , quantum information , photon , quantum channel , spontaneous emission , optics , quantum mechanics , laser , computer science , quantum entanglement , artificial intelligence
Quantum state transfer plays an important role in quantum information processing, and it has been obtained many of the theoretical and experimental triumphs. But designing a dissipation-assisted scheme to transfer a quantum state is still by no means trivial. Here we put forward an easier scheme to dissipatively transfer an arbitrary quantum state from a sender to a receiver with two four-level atoms and three lasers in a lossy coupled-cavity array, and make the quantum state stable at the receiver via the photon loss of optical cavities. Owing to the assistance of the dissipation, the target state becomes the steady state of the whole process. Thus there is no requirement on external time-dependent controls. Furthermore, the atomic spontaneous emission can be significantly suppressed as the adiabatic elimination of the excited states. We also discuss the experimental feasibility of this scheme with the current experimental technologies and a high fidelity of the transferred state in the receiver can be above 98%.