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Self-Polarization and Dynamical Cooling of Nuclear Spins in Double Quantum Dots

By M. Rudner and L. Levitov
Spontaneous nuclear polarization is predicted in double quantum dots in the spin-blocked electron transport regime. The polarization results from an instability of the zero-polarization state when singlet and triplet electron energy levels are brought into resonance by the effective hyperfine field of the nuclei on the electrons. The nuclear spins,... Show more
August 20, 2010
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Self-Polarization and Dynamical Cooling of Nuclear Spins in Double Quantum Dots
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