Geometrical phases of excitonic qubits in quantum dots

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dc.contributor.authorThilagam, A.en
dc.contributor.schoolSchool of Chemistry and Physicsen
dc.date.issued2009en
dc.description© Institute of Physics 2009en
dc.description.abstractWe investigate the influence of phonon mediated interactions on the non-unitary evolution of geometrical phases in excitonic qubits formed in quantum dots entangled by pure Förster coupling. We consider decoherence to occur via acoustic phonons interacting through the deformation potential and piezoelectric coupling mechanisms. The influences of bath temperature, external electric field, quantum dot size and interdot distance on the evolution of geometrical phases are examined for the GaAs/AlGaAs material system. We extend the theory to determine the effect of dynamic decoupling employing ultrafast π-pulses on the evolution of geometrical phases in the presence of dephasing processes.en
dc.identifier.citationJournal of Physics-Condensed Matter, 2009; 21(4):045504-1-045504-8en
dc.identifier.doi10.1088/0953-8984/21/4/045504en
dc.identifier.issn0953-8984en
dc.identifier.urihttp://hdl.handle.net/2440/53119
dc.language.isoenen
dc.publisherIOP Publishingen
dc.titleGeometrical phases of excitonic qubits in quantum dotsen
dc.typeJournal articleen

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