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Confluence of resonant laser excitation and bidirectional quantum-dot nuclear-spin polarization

Latta, C. ; Högele, A. ; Zhao, Y. ; Vamivakas, A. N. ; Maletinsky, P. ; Kroner, M. ; Dreiser, J. ; Carusotto, I. ; Badolato, A. ; Schuh, D. ; Wegscheider, W. ; Atature, M. ; Imamoglu, A.



Zusammenfassung

Resonant laser scattering along with photon correlation measurements established the atom-like character of quantum dots. Here, we show that for a wide range of experimental parameters it is impossible to isolate elementary quantum-dot excitations from a strong influence of nuclear spins; the absorption lineshapes at magnetic fields exceeding 1 T indicate that the nuclear spins get polarized by ...

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