TY - JOUR
T1 - An all-silicon linear chain NMR quantum computer
AU - Itoh, Kohei M.
N1 - Funding Information:
This work has been conducted in collaboration with Y. Yamamoto, T.D. Ladd, J.R. Goldman, Y. Ohno, S. Sasaki, Y. Matsumoto, M. Esashi, D. Wang, T. Sekiguchi, S. Yoshida, E. Abe, A. Takahashi, and R. Van Meter. We extend our sincere thanks to E.E. Haller for fruitful discussions. The work was supported partly by a Grant-in-Aid for Scientific Research in Priority Areas ‘Semiconductor Nanospintronics’ from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
PY - 2005/3
Y1 - 2005/3
N2 - An updated version of our all-silicon quantum computing scheme [T.D. Ladd, J.R. Goldman, F. Yamaguchi, Y. Yamamoto, E. Abe, K.M. Itoh, Phys. Rev. Lett. 89 (2002) 017901. [3]] and the experimental progress towards its realization are discussed. We emphasize the importance of revisiting a wide range of isotope effects which have been explored over the past several decades for the construction of solid-state silicon quantum computers. Using RF decoupling techniques [T.D. Ladd, D. Maryenko, Y. Yamamoto, E. Abe, K.M. Itoh, Phys. Rev. B. 71 (2005) 014401] phase decoherence times T2=25 s of 29Si nuclear spins in single-crystal Si have been obtained at room temperature. We show that a linear chain of 29Si stable isotopes with nuclear spin I=1/2 embedded in a spin free 28Si stable isotope matrix can form an ideal building block for solid-state quantum information processors, especially, in the form of a quantum memory which requires a large number of operations within T2 for the continuous error correction.
AB - An updated version of our all-silicon quantum computing scheme [T.D. Ladd, J.R. Goldman, F. Yamaguchi, Y. Yamamoto, E. Abe, K.M. Itoh, Phys. Rev. Lett. 89 (2002) 017901. [3]] and the experimental progress towards its realization are discussed. We emphasize the importance of revisiting a wide range of isotope effects which have been explored over the past several decades for the construction of solid-state silicon quantum computers. Using RF decoupling techniques [T.D. Ladd, D. Maryenko, Y. Yamamoto, E. Abe, K.M. Itoh, Phys. Rev. B. 71 (2005) 014401] phase decoherence times T2=25 s of 29Si nuclear spins in single-crystal Si have been obtained at room temperature. We show that a linear chain of 29Si stable isotopes with nuclear spin I=1/2 embedded in a spin free 28Si stable isotope matrix can form an ideal building block for solid-state quantum information processors, especially, in the form of a quantum memory which requires a large number of operations within T2 for the continuous error correction.
KW - A. Semiconductors
KW - C. Scanning tunnelling microscopy
KW - D. Spin dynamics
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U2 - 10.1016/j.ssc.2004.12.045
DO - 10.1016/j.ssc.2004.12.045
M3 - Article
AN - SCOPUS:14044254115
VL - 133
SP - 747
EP - 752
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 11 SPEC. ISS.
ER -