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cond-mat.mes-hall2007★ 18 cited
Entanglement generation via a completely mixed nuclear spin bath
H. Christ, J. I. Cirac, G. Giedke
We show that qubits coupled sequentially to a mesoscopic static completely mixed spin bath via the Heisenberg interaction can become highly entangled. Straightforward protocols for…
cond-mat.mes-hall2006★ 62 cited
Quantum Description of Nuclear Spin Cooling in a Quantum Dot
H. Christ, J. I. Cirac, G. Giedke
We study theoretically the cooling of an ensemble of nuclear spins coupled to the spin of a localized electron in a quantum dot. We obtain a master equation for the state of the nu…
cond-mat.mes-hall2004★ 5 cited
Quantum information processing using localized ensembles of nuclear spins
J. M. Taylor, G. Giedke, H. Christ +5
We describe a technique for quantum information processing based on localized en sembles of nuclear spins. A qubit is identified as the presence or absence of a collective excitati…