High coherent solid-state qubit from a pair of quantum dots

Details High coherent solid-state qubit from a pair of quantum dots High coherent solid-state qubit from a pair of quantum dots

2002-04-05

arxiv.org/abs/quant-ph/0204027v1

Appl. Phys. Lett. 81, 168 (2002).

Physics

Quantum Physics

3 pages, 1 figure

Scientific paper

10.1063/1.1491289

In this letter we propose a scheme to build up high coherent solid-state quantum bit (qubit) from two coupled quantum dots. Quantum information is stored in electron-hole pair state with the electron and hole locating in different dots, and universal quantum gates involving any pair of qubits are realized by effective coupling interaction via virtually exchanging cavity photons.

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