Coherent control of a V-type three-level system in a single quantum dot

Abstract

In a semiconductor quantum dot, the Px and Py transitions to the polarization eigenstates, |x> and |y>, naturally form a three-level V-type system. Using low-temperature polarized photoluminescence spectroscopy, we have investigated the exciton dynamics arising under strong laser excitation. We also explicitly solved the density matrix equations for comparison with the experimental data. The polarization of the exciting field controls the coupling between the otherwise orthogonal states. In particular, when the system is initialized into |y>, a polarization-tailored pulse can swap the population into |x>, and vice-versa, effectively operating on the exciton spin.

Submitted to PRL

References in corpus (8)

• Conditional Quantum Dynamics and Logic Gates
• Quantum-Information Processing with Semiconductor Macroatoms
• Control of Spin Dynamics of Excitons in Nanodots for Quantum Operations
• Decoherence of Rabi oscillations in a single quantum dot
• Decoherence processes during active manipulation of excitonic qubits in semiconductor quantum dots
• Determination of anisotropic dipole moments in self-assembled quantum dots using Rabi oscillations
• Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot
• Optimal quantum control in nanostructures: Theory and application to generic three-level system

Cited by in corpus (12)

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• Two qubit conditional quantum logic operation in a single self-assembled quantum dot
• Theory of two-photon processes in quantum dots: coherent evolution and phonon-induced dephasing
• Entanglement dynamics of photon pairs emitted from quantum dot
• Coherent Nonlinear Optical Response for High-Intensity Excitation
• Fundamentals of heterodyne wave mixing spectroscopy: a tutorial
• Violation of Leggett-Garg inequalities in single quantum dot
• High fidelity state mapping performed in a V-type level structure via stimulated Raman transition
• Comment on ``Coherent Control of a V-Type Three-Level System in a Single Quantum Dot''
• Unidirectional Quantum Transport in Optically Driven $V$-type Quantum Dot Chains
• Optimization of Time-Dependent Decoherence Rates and Coherent Control for a Qutrit System
• Excitation-pulse intensity mediated control of coherent nonlinear optical response of a V-type system