Interaction of Quantum Dot Molecules with Multi-Mode Radiation Fields
نویسندگان
1 Department of Electrical Engineering,Sharif University of Technology
2 Department of Electrical Engineering,Sharif University of Technology
3 Department of Electrical Engineering,Sharif University of Technology
doi
چکیده
In this article, the interaction of an arbitrary number of quantum dots behaving as arti cial molecules with di erent energy levels and a multi-mode electromagnetic eld is studied. We make the assumption that each quantum dot can be represented as an atom with zero kinetic energy, and that all excitonic e ects except dipole-dipole interactions may be disregarded. We use the 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 eld 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 eld. We, furthermore, study the evolution of entanglement by de ning and computing the concurrency.
