Controlling Coherent Quantum Dot Interactions

Abstract

We measure many-body interactions in isolated quantum dot states using double-quantum multidimensional coherent spectroscopy. Few states are probed in a diffraction limited spot, which is enabled by a novel collinear scheme in which radiated four-wave-mixing signals are measured with phase resolution. Many-body interactions are enhanced by an additional prepulse tuned to the delocalized quasi-continuum states. We propose this effect as a method for controlling coupling between quantum states.

References in corpus (8)

• Local conservation laws and the structure of the many-body localized states
• Ultrafast optical control of entanglement between two quantum dot spins
• Multidimensional Coherent Photocurrent Spectroscopy of a Semiconductor Nanostructure
• Many-body two-quantum coherences in semiconductor nanostructures
• Two-dimensional correlation spectroscopy of two-exciton resonances in semiconductor quantum wells
• Excitation Induced Dephasing in Semiconductor Quantum Dots
• Coherent coupling of individual quantum dots measured with phase-referenced two-dimensional spectroscopy: photon echo versus double quantum coherence
• Optical control of coherent interactions between quantum dot electron spins

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• Hidden Silicon-Vacancy Centers in Diamond
• Lineshape Analysis of Double-Quantum Multidimensional Coherent Spectra
• Coherent exciton-exciton interactions and exciton dynamics in a MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructure
• Controlled Coherent Coupling in a Quantum Dot Molecule Revealed by Ultrafast Four-Wave Mixing Spectroscopy
• Dephasing of InAs quantum dot p-shell excitons using two-dimensional coherent spectroscopy
• Coherent Nonlinear Optical Response for High-Intensity Excitation
• Diagonal Slice Four-Wave Mixing: Natural Separation of Coherent Broadening Mechanisms
• Exciton-exciton Interactions -- A Quantitative Comparison Between Complimentary Phenomenological Models
• Measuring Exciton Fine-Structure in Perovskite Nanocrystal Ensembles
• Quantitative Lineshape Analysis for Arbitrary Inhomogeneity in Two-Dimensional Coherent Spectroscopy