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Optically induced phase transition of excitons in coupled quantum dots

Chen Zi-Dong1

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The weak classical light excitations in many semiconductor quantum dots have been chosen as important solid-state quantum systems for processing quantum information and implementing quantum computing. For strong classical light we predict theoretically a novel phase transition as a function of magnitude of this classical light from the deformed to the normal phases in resonance case, and the essential features of criticality such as the scaling behaviour, critical exponent and universality are also present in this paper.


PACS

73.21.La Quantum dots

71.35.Lk Collective effects (Bose effects, phase space filling, and excitonic phase transitions)

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Nanoscale science and low-D systems

Dates

Issue 3 (March 2008)

Received 7 May 2007, in final form 26 September 2007



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