256 citations · 780 across the 30 of their papers we have counts for
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quant-ph2004★ 35 cited
Entanglement of electron spins in superconductors
Sangchul Oh, Jaewan Kim
We investigate entanglement of two electron spins forming Cooper pairs in an s-wave superconductor. The two-electron space-spin density matrix is obtained from the BCS ground state…
quant-ph2004★ 63 cited
Entanglement of electron spins of non-interacting electron gases
Sangchul Oh, Jaewan Kim
We study entanglement of electron spins in many-body systems based on the Green's function approach. As an application we obtain the two-particle density matrix of a non-interactin…