Efficient Generation of Atomic Singlet State with Rydberg Blockade and Lie‐Transform‐Based Pulse Design

A protocol to generate atomic singlet state of three atoms is proposed. The strong Rydberg interactions between atoms mediate the multi‐qubit operations and help to simplify the dynamics of the system. The effective Hamiltonian is constructed in the regime of Rydberg blockade and the evolution path...

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Bibliographic Details
Published in:Annalen der Physik 2020-07, Vol.532 (7), p.n/a
Main Authors: Da, Xinyu, Shi, Zhi‐Cheng
Format: Article
Language:English
Subjects:
Computer simulation
Lie transforms
Robustness (mathematics)
Rydberg blockades
singlet states
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Summary:A protocol to generate atomic singlet state of three atoms is proposed. The strong Rydberg interactions between atoms mediate the multi‐qubit operations and help to simplify the dynamics of the system. The effective Hamiltonian is constructed in the regime of Rydberg blockade and the evolution path is built up from an initial state to the target singlet state via the Lie‐transform‐based pulse design. Numerical simulations show the protocol can produce atomic singlet state with high fidelity and holds robustness against several types of experimental imperfections. Therefore, it may provide some useful results for the generation of singlet states in atomic system. A protocol is proposed to generate singlet states in atomic system. In the Rydberg blockade, the evolution path from an initial state to the singlet state is designed by a Lie‐transform‐based pulse. Numerical simulations show that the protocol holds robust against several types of experimental imperfections. This work may provide some useful results for the generation of singlet states.
ISSN:0003-3804
1521-3889
DOI:10.1002/andp.202000093