Optical read-out and initialization of an electron spin in a single quantum dot

We have shown theoretically that the read-out of a single electron spin is viable through resonant excitation of a trion with circularly polarized light, and suggest a feasible protocol for the spin initialization.

[1]  Mirlin,et al.  Spin-flip Raman scattering in GaAs/AlxGa1-xAs multiple quantum wells. , 1992, Physical review. B, Condensed matter.

[2]  Jin H. Huang ANALYTICAL PREDICTIONS FOR THE MAGNETOELECTRIC COUPLING IN PIEZOMAGNETIC MATERIALS REINFORCED BY PIEZOELECTRIC ELLIPSOIDAL INCLUSIONS , 1998 .

[3]  D. DiVincenzo,et al.  Quantum computation with quantum dots , 1997, cond-mat/9701055.

[4]  D. D. Awschalom,et al.  Quantum information processing using quantum dot spins and cavity QED , 1999 .

[5]  Kikkawa,et al.  All-optical magnetic resonance in semiconductors , 2000, Science.

[6]  K. Karrai,et al.  Optical emission from a charge-tunable quantum ring , 2000, Nature.

[7]  T. Takagahara,et al.  Theory of exciton doublet structures and polarization relaxation in single quantum dots , 2000 .

[8]  Few-particle effects in semiconductor quantum dots: observation of multicharged excitons , 2000, Physical review letters.

[9]  L. J. Sham,et al.  Rabi oscillations of excitons in single quantum dots. , 2001, Physical review letters.

[10]  H. Kamada,et al.  Exciton Rabi oscillation in a single quantum dot. , 2001, Physical review letters.

[11]  Eli Yablonovitch,et al.  Gate-controlled electron spin resonance in G a A s / A l x Ga 1 − x As heterostructures , 2001 .

[12]  A. Gossard,et al.  Electrical control of spin coherence in semiconductor nanostructures , 2001, Nature.

[13]  C. Monroe,et al.  Quantum information processing with atoms and photons , 2002, Nature.

[14]  Electron spin relaxation by nuclei in semiconductor quantum dots , 2002, cond-mat/0202271.

[15]  C. Piermarocchi,et al.  Optical RKKY interaction between charged semiconductor quantum dots. , 2002, Physical Review Letters.

[16]  A. Holmes,et al.  Interplay of Rabi oscillations and quantum interference in semiconductor quantum dots. , 2002, Physical review letters.

[17]  J. Tischler,et al.  Fine structure of trions and excitons in single GaAs quantum dots , 2002 .

[18]  A. Zrenner,et al.  Coherent properties of a two-level system based on a quantum-dot photodiode , 2002, Nature.

[19]  P. Zoller,et al.  Spin-based all-optical quantum computation with quantum dots: Understanding and suppressing decoherence , 2003, quant-ph/0304044.