All-Silicon Quantum Computer

T. D. Ladd; J. R. Goldman; F. Yamaguchi; Y. Yamamoto; E. Abe; K. M. Itoh

doi:10.1103/PhysRevLett.89.017901

All-Silicon Quantum Computer

T. D. Ladd, J. R. Goldman, F. Yamaguchi, Y. Yamamoto, E. Abe, and K. M. Itoh

Phys. Rev. Lett. 89, 017901 – Published 12 June 2002

Abstract

A solid-state implementation of a quantum computer composed entirely of silicon is proposed. Qubits are $^{29} Si$ nuclear spins arranged as chains in a $^{28} Si$ (spin-0) matrix with Larmor frequencies separated by a large magnetic field gradient. No impurity dopants or electrical contacts are needed. Initialization is accomplished by optical pumping, algorithmic cooling, and pseudo-pure state techniques. Magnetic resonance force microscopy is used for ensemble measurement.

Received 10 September 2001

DOI:https://doi.org/10.1103/PhysRevLett.89.017901

Authors & Affiliations

T. D. Ladd^*, J. R. Goldman, F. Yamaguchi, and Y. Yamamoto^†

Quantum Entanglement Project, ICORP, JST, Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4085

E. Abe and K. M. Itoh^‡

Department of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, Japan

^*Electronic address: tladd@stanford.edu
^†Also at NTT Basic Research Laboratories, 3-1 Morinosato-Wakamiya Atsugi, Kanagawa, 243-0198, Japan.
^‡Also at PRESTO-JST.