Two-dimensional transport and transfer of a single atomic qubit in optical tweezers
Author: ["Jérôme Beugnon","Charles Tuchendler","Harold Marion","Alpha Gaëtan","Yevhen Miroshnychenko","Yvan R. P. Sortais","Andrew M. Lance","Matthew P. A. Jones","Gaétan Messin","Antoine Browaeys","Philippe Grangier"]
Publication: Nature Physics
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Abstract
Quantum computers have the capability of out-performing their classical counterparts for certain computational problems1. Several scalable quantum-computing architectures have been proposed. An attractive architecture is a large set of physically independent qubits arranged in three spatial regions where (1) the initialized qubits are stored in a register, (2) two qubits are brought together to realize a gate and (3) the readout of the qubits is carried out2,3. For a neutral-atom-based architecture, a natural way to connect these regions is to use optical tweezers to move qubits within the system. In this letter we demonstrate the coherent transport of a qubit, encoded on an atom trapped in a submicrometre tweezer, over a distance typical of the separation between atoms in an array of optical traps4,5,6. Furthermore, we transfer a qubit between two tweezers, and show that this manipulation also preserves the coherence of the qubit.
Cite this article
Beugnon, J., Tuchendler, C., Marion, H. et al. Two-dimensional transport and transfer of a single atomic qubit in optical tweezers. Nature Phys 3, 696–699 (2007). https://doi.org/10.1038/nphys698
