Quantum Computing with Incoherent Resources and Quantum Jumps

被引：19

作者：

Santos, M. F. ^{[1
]}

Terra Cunha, M. ^{[2
]}

Chaves, R. ^{[3
]}

Carvalho, A. R. R. ^{[4
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

[2] Univ Fed Minas Gerais, Dept Matemat, BR-30123970 Belo Horizonte, MG, Brazil

[3] ICFO Inst Ciencies Fotoniques, Castelldefels 08860, Barcelona, Spain

[4] Australian Natl Univ, Ctr Quantum Computat & Commun Technol, Dept Quantum Sci, Res Sch Phys & Engn, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 17期

基金：

澳大利亚研究理事会;

关键词：

DELAYED-CHOICE; PHOTON; TELEPORTATION; DISSIPATION; SYSTEMS; OPTICS; QUBITS; CAVITY; STATE;

D O I：

10.1103/PhysRevLett.108.170501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spontaneous emission and the inelastic scattering of photons are two natural processes usually associated with decoherence and the reduction in the capacity to process quantum information. Here we show that, when suitably detected, these photons are sufficient to build all the fundamental blocks needed to perform quantum computation in the emitting qubits while protecting them from deleterious dissipative effects. We exemplify this by showing how to efficiently prepare graph states for the implementation of measurement-based quantum computation.

引用

页数：5

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