Optically driven qubits in artificial molecules

J. H. Oh, D. Ahn, S. W. Hwang

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Using coupled quantum dots in which a qubit is regarded as the superposition of ground states in each dot, the models of quantum gates molecules were derived. Time-dependent Schrodinger equation was used to prove that simple artificial molecules associated with light pulses serve as the quantum gates. The decoherence of a quantum state during the unitary operation was analyzed by calculating the relaxation rate by phonon process. The results showed that the number of quantum states in the quantum dot depends on the confinement potential or the radius of the quantum dot.

Original languageEnglish
Pages (from-to)52306-52301
Number of pages6
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
StatePublished - Nov 2000


Dive into the research topics of 'Optically driven qubits in artificial molecules'. Together they form a unique fingerprint.

Cite this