164 citations · 1.1k across the 62 of their papers we have counts for
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quant-ph2004★ 8 cited
Engineering antiferromagnetic Heisenberg spin chains for maximizing of the groundstate entanglement
R. Xin, Z. Song, C. P. Sun
We study the correlation function and concurrence for the eigenstates with zero spin of engineered Heisenberg models to explore the entanglement property. It is shown that the tota…
quant-ph2004★ 15 cited
On the Harmonic approximation for large Josephson junction coupling charge qubits
T. Shi, B. Chen, Z. Song +1
We revisit the harmonic approximation (HA) for a large Josephson junction interacting with some charge qubits through the variational approach for the quantum dynamics of the junct…