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arXiv · 0911.1630

Interaction of quantum dot molecules with multi-mode radiation fields

Amir Hossein Sadeghi·Ali Naqavi·Sina Khorasani
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Abstract

In this article, the interaction of an arbitrary number of quantum dots, behaving as artificial molecules, with different energy levels and multi-mode electromagnetic field is studied. We make the assumption that each quantum dot can be represented as an atom with zero kinetic energy, and that all excitonic effects except dipole-dipole interactions may be disregarded. We use Jaynes-Cummings-Paul model with applications to quantum systems based on a time-dependent Hamiltonian and entangled states. We obtain a system of equations describing the interaction and present a method to solve the equations analytically for a single mode field within the Rotating-Wave Approximation. As an example of the applicability of this approach, we solve the system of two two-level quantum dots in a lossless cavity with two modes of electromagnetic field. We furthermore study the evolution of entanglement by defining and computing the concurrency.

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Amir Hossein Sadeghi, Ali Naqavi, Sina Khorasani. 2009-11-09. Interaction of quantum dot molecules with multi-mode radiation fields. https://arxiv.org/abs/0911.1630

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