Quantum computing with spatially delocalized qubits

被引：58

作者：

Mompart, J

Eckert, K

Ertmer, W

Birkl, G

Lewenstein, M

机构：

[1] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[2] Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Spain

[3] Leibniz Univ Hannover, Inst Quantum Opt, D-30167 Hannover, Germany

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.90.147901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the operation of quantum gates for neutral atoms with qubits that are delocalized in space, i.e., the computational basis states are defined by the presence of a neutral atom in the ground state of one out of two trapping potentials. The implementation of single-qubit gates as well as a controlled phase gate between two qubits is discussed and explicit calculations are presented for rubidium atoms in optical microtraps. Furthermore, we show how multiqubit highly entangled states can be created in this scheme.

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页数：4

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