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Quantum computation with rotational states of nonpolar ionic molecules

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Title
Quantum computation with rotational states of nonpolar ionic molecules
Author(s)
Sang Jae Yun; Chang Hee Nam
Publication Date
2013-04
Journal
PHYSICAL REVIEW A, v.87, no.4, pp.40302-1 - 40302-5
Publisher
AMER PHYSICAL SOC
Abstract
We propose a quantum computer architecture that is robust against decoherence and scalable. As a qubit we adopt rotational states of a nonpolar ionic molecule trapped in an ion trap. It is revealed that the rotational-state qubits are much more immune to decoherence than the conventional electronic-state qubits of atomic ions. A complete method set that includes state preparation, a single-qubit gate, a controlled-NOT gate, and qubit readout suitable for the rotational-state qubits is provided. Since the ionic molecules can be transported in an array of ion traps, the rotational-state qubits are expected to be a promising candidate to build a large-scale quantum computer.
URI
http://pr.ibs.re.kr/handle/8788114/1596
DOI
10.1103/PhysRevA.87.040302
ISSN
1050-2947
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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