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초강력 레이저 과학 연구단
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Ising interaction between two qubits composed of the highest magnetic quantum number states through magnetic dipole-dipole interaction

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Title
Ising interaction between two qubits composed of the highest magnetic quantum number states through magnetic dipole-dipole interaction
Author(s)
Sang Jae Yun; Jaewan Kim; Chang Hee Nam
Publication Date
2015-04
Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, v.48, no.7, pp.075501 -
Publisher
IOP PUBLISHING LTD
Abstract
In quantum information processing, one of the most useful interactions between qubits is the Ising type interaction. We propose a scheme to implement the exact Ising interaction through magnetic dipole-dipole interaction. Although magnetic dipolar interaction is Heisenberg type in general, this interaction can bring about the exact mathematical form of the Ising interaction if qubit levels are chosen among the highest magnetic quantum number states. Real physical systems to which our scheme can be applied include rotational states of molecules, hyperfine states of atoms, or electronic states of nitrogen-vacancy centers in diamond. We analyze the feasibility of our scheme for these systems. For example, when the hyperfine levels of rubidium 87 atoms are chosen as qubits and the distance of the two atoms is 0.1 micrometer, the controlled-Z gate time will be 8.5 ms. We suggest diverse search and study to achieve optimal implementation of this scheme. © 2015 IOP Publishing Ltd
URI
https://pr.ibs.re.kr/handle/8788114/2045
ISSN
0953-4075
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
Files in This Item:
(Ising)Journal of Physics B_S Yun_19181.pdfDownload

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