Fast nonadiabatic two-qubit gates for the Kane quantum computer

Hill, C. D. and Goan, H. S. (2003) Fast nonadiabatic two-qubit gates for the Kane quantum computer. Physical Review A, 68 1: 012321.1-012321.11. doi:10.1103/PhysRevA.68.012321

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Author Hill, C. D.
Goan, H. S.
Title Fast nonadiabatic two-qubit gates for the Kane quantum computer
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2003
Sub-type Article (original research)
DOI 10.1103/PhysRevA.68.012321
Open Access Status File (Publisher version)
Volume 68
Issue 1
Start page 012321.1
End page 012321.11
Total pages 11
Editor B. Craeman
L. A. Collins
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Subject C1
240201 Theoretical Physics
780102 Physical sciences
Abstract In this paper, we apply the canonical decomposition of two-qubit unitaries to find pulse schemes to control the proposed Kane quantum computer. We explicitly find pulse sequences for the controlled-NOT, swap, square root of swap, and controlled Z rotations. We analyze the speed and fidelity of these gates, both of which compare favorably to existing schemes. The pulse sequences presented in this paper are theoretically faster, with higher fidelity, and simpler. Any two-qubit gate may be easily found and implemented using similar pulse sequences. Numerical simulation is used to verify the accuracy of each pulse scheme.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Spin Resonance Experiments
Phosphorus-doped Silicon
Lattice Relaxation
Computation
Donors
States
Q-Index Code C1
Additional Notes Article ID: 012321

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2004 Higher Education Research Data Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Wed, 15 Aug 2007, 02:27:56 EST