Teleportation between distant qudits via scattering of mobile qubits

被引：11

作者：

Ciccarello, Francesco ^{[1
,2
]}

Bose, Sougato ^{[3
]}

Zarcone, Michelangelo ^{[1
,2
]}

机构：

[1] Univ Palermo, CNISM, I-90128 Palermo, Italy

[2] Univ Palermo, Dipartimento Fis & Tecnol Relat, I-90128 Palermo, Italy

[3] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

DETERMINISTIC QUANTUM TELEPORTATION; FABRY-PEROT-INTERFEROMETER; ATOMIC STATE; FLYING QUBITS; CAVITY; COMPUTATION; ENTANGLEMENT;

D O I：

10.1103/PhysRevA.81.042318

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider a one-dimensional structure where noninteracting spin-s scattering centers, such as quantum impurities or multilevel atoms, are embedded at given positions. We show that the injection into the structure of unpolarized flying qubits, such as electrons or photons, along with path detection suffice to accomplish spin-state teleportation between two centers via a third ancillary one. No action over the internal quantum state of both the spin-s particles and the flying qubits is required. The protocol enables the transfer of quantum information between well-separated static entities in nanostructures by exploiting a very low control mechanism, namely scattering.

引用

页数：8

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