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Efficient Generation of Atomic Singlet State with Rydberg Blockade and Lie‐Transform‐Based Pulse Design
Author(s) -
Da Xinyu,
Shi ZhiCheng
Publication year - 2020
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.202000093
Subject(s) - rydberg formula , singlet state , physics , hamiltonian (control theory) , robustness (evolution) , rydberg state , atomic physics , quantum mechanics , chemistry , excited state , mathematics , ion , ionization , mathematical optimization , biochemistry , gene
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.