Quantum Computing with Quantum Dots

Amin Mobasher, Saeed Fathololoumi, Somayyeh Rahimi

Xin-Qi Li, Yasuhiko Arakawa

John King Gamble

Janusz Adamowski, S. Bednarek, B. Szafran

Abstract. A possible implementation of quantum computation on quantum dots is discussed. We focus on the application of the spin of the electron confined in the quantum dot to read/write operations of quantum bits (qubits). The realization of quantum logic gates is studied for the spin states of the two-electron system confined in the two coupled quantum dots. We also discuss the advantages and limitations of the quantum-dot quantum computing technology.

Xuedong Hu, S. Das Sarma

We review our recent work addressing various theoretical issues in spin-based quantum dot quantum computation and quantum information processing. In particular, we summarize our calculation of electron exchange interaction in two-electron double quantum dots and multi-electron double dots, and discuss the physical implication of our results. We also discuss possible errors and how they can be corrected in spin-based quantum dot quantum computation. We critically assess the constraints and conditions required for building spin-based solid state quantum dot quantum computers.