Coherent control of a single Mn spin in a quantum dot via optical manipulation of the light hole exciton

D. E. Reiter; T. Kuhn; V. M. Axt

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Coherent control of a single Mn spin in a quantum dot via optical manipulation of the light hole exciton

机译：通过光空穴激子的光学操纵对量子点中单个Mn自旋的相干控制

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Due to the strong exchange interaction between a single Mn spin embedded in a single semiconductor quantum dot and the quantum dot exciton, the spin state of the Mn atom can be controlled via optical manipulation of the exciton. When the hole of the exciton is of light hole type, both electron and hole can induce spin flips and thus change the Mn spin. We propose switching protocols to selectively address the Mn spin states. Depending on the polarization of the laser pulses the Mn spin can be switched by different switching schemes into all eigenstates. In contrast to previous studies involving heavy holes, we can find faster and more stable switching sequences. We discuss in detail the absorption spectrum of the lowest light hole exciton transition, which is strongly modified by the presence of the Mn spin. Furthermore, we show that spectrally resolved pump-probe measurements provide a suitable technique to monitor the Mn spin dynamics.

机译：由于嵌入在单个半导体量子点中的单个Mn自旋与量子点激子之间的强交换相互作用，可以通过对激子进行光学操作来控制Mn原子的自旋态。当激子的空穴为轻空穴型时，电子和空穴都可以引起自旋翻转，从而改变Mn自旋。我们提出了切换协议以选择性地解决Mn自旋状态。取决于激光脉冲的极化，可以通过不同的切换方案将Mn自旋切换为所有本征态。与先前有关重孔的研究相比，我们可以找到更快，更稳定的开关顺序。我们将详细讨论最低光空穴激子跃迁的吸收光谱，该跃迁因Mn自旋的存在而强烈地改变。此外，我们表明，光谱解析的泵浦探针测量提供了一种监测Mn自旋动力学的合适技术。

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来源
《Physical review》 |2011年第15期|p.155322.1-155322.8|共8页
作者
D. E. Reiter; T. Kuhn; V. M. Axt;
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作者单位

Institut fuer Festkoerpertheorie, Universitat Miinster, Wilhelm-Klemm-Strasse 10, 48149 Muenster, Germany;

Institut fuer Festkoerpertheorie, Universitat Miinster, Wilhelm-Klemm-Strasse 10, 48149 Muenster, Germany;

Theoretische Physik Ⅲ, Universitat Bayreuth, 95440 Bayreuth, Germany;

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正文语种 eng
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quantum dots; magnetic semiconductors;

机译：量子点;磁性半导体;

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1. Coherent Optical Control of the Spin of a Single Hole in an InAs/GaAs Quantum Dot [J] . T.M. Godden, J.H. Quilter, A. J. Ramsay, Physical review letters . 2012,第1期

机译：InAs / GaAs量子点中单孔自旋的相干光学控制
2. Coherent Optical Writing and Reading of the Exciton Spin State in Single Quantum Dots [J] . Y. Benny, S. Khatsevich, Y. Kodriano, Physical review letters . 2011,第4期

机译：单量子点中激子自旋态的相干光学写和读
3. Dynamical Model For Coherent Optical Manipulation Of A Single Spin State In A Charged Quantum Dot [J] . Gabriela Slavcheva Physica status solidi . 2009,第2期

机译：带电量子点中单自旋态相干光学操纵的动力学模型
4. Coherent optical control a single hole spin in a quantum dot [C] . Godden, T. M. CLEO;Conference on Lasers and Electro-Optics . 2012

机译：相干光学控制量子点中的单孔自旋
5. Quantum optical control of spins and excitons in semiconductor quantum dots. [D] . Chen, Pochung. 2002

机译：半导体量子点中自旋和激子的量子光学控制。
6. Ultrafast Spectroscopy of Fano-Like Resonance between Optical Phonon and Excitons in CdSe Quantum Dots: Dependence of Coherent Vibrational Wave-Packet Dynamics on Pump Fluence [O] . Victor Nadtochenko, Nikolay Denisov, Arseniy Aybush, 2017

机译：CdSe量子点中光子和激子之间的范式共振的超快光谱：泵浦注量的相干振动波包动力学的依赖
7. Coherent optical control of the spin of a single hole in a quantum dot [O] . Godden Timothy Mark 2012

机译：量子点中单个孔自旋的相干光学控制

Coherent control of a single Mn spin in a quantum dot via optical manipulation of the light hole exciton

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