2000/05/17 by Filippo Troiani, Ulrich Hohenester, Elisa Molinari · 180 citations
Computer Science · Physics and Astronomy · #Biexciton #Condensed matter physics #Coulomb #Degrees of freedom (physics and chemistry) #Electron #Exciton #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Quantum dot #Quantum mechanics #Qubit #Renormalization #Semiconductor #Semiconductor Quantum Structures and Devices #quant-ph
paper · pdf · doi:10.1103/physrevb.62.r2263
published in Physical review. B, Condensed matter 62(4), R2263-R2266 (American Physical Society) · 5 pages revtex, 2 encapsulated postscript figures. Accepted for publication in Phys. Rev. B (Rapid Communication)
arxiv created 2000/05/17 · openalex publication_date 2000/07/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose an all-optical implementation of quantum-information processing in semiconductor quantum dots, where electron-hole excitations (excitons) serve as the computational degrees of freedom (qubits). We show that the strong dot confinement leads to an overall enhancement of Coulomb correlations and to a strong renormalization of the excitonic states, which can be exploited for performing conditional and unconditional qubit operations.