2,071 research outputs found
On spectrum of ILW hierarchy in conformal field theory II: coset CFT's
We study integrable structure of the coset conformal field theory and define
the system of Integrals of Motion which depends on external parameters. This
system can be viewed as a quantization of the ILW type hierarchy. We propose a
set of Bethe anzatz equations for its spectrum.Comment: 11 page
Indirect coupling between spins in semiconductor quantum dots
The optically induced indirect exchange interaction between spins in two
quantum dots is investigated theoretically. We present a microscopic
formulation of the interaction between the localized spin and the itinerant
carriers including the effects of correlation, using a set of canonical
transformations. Correlation effects are found to be of comparable magnitude as
the direct exchange. We give quantitative results for realistic quantum dot
geometries and find the largest couplings for one dimensional systems.Comment: 4 pages, 3 figure
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