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- W2039982965 abstract "We have investigated theoretically and experimentally a method for preparing Dicke states in trapped atomic ions. We consider a linear chain of $N$ ion qubits that is prepared in a particular Fock state of motion $|m⟩$. The $m$ phonons are removed by applying a laser pulse globally to the $N$ qubits and converting the motional excitation to $m$ flipped spins. The global nature of this pulse ensures that the $m$ flipped spins are shared by all the target ions in a state that is a close approximation to the Dicke state $|{D}_{N}^{(m)}⟩$. We calculate numerically the fidelity limits of the protocol and find small deviations from the ideal state for $m=1$ and $m=2$. We have demonstrated the basic features of this protocol by preparing the Bell state $|{D}_{2}^{(1)}⟩$ in two ${^{25}text{M}text{g}}^{+}$ target ions trapped simultaneously with an ${^{27}text{A}text{l}}^{+}$ ancillary ion." @default.
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- W2039982965 date "2009-11-02" @default.
- W2039982965 modified "2023-10-18" @default.
- W2039982965 title "Preparation of Dicke states in an ion chain" @default.
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- W2039982965 doi "https://doi.org/10.1103/physreva.80.052302" @default.
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