Experimental demonstration of a teleportation-based programmable quantum gate

被引：8

作者：

Slodicka, Lukas ^{[1
,2
]}

Jezek, Miroslav ^{[1
]}

Fiurasek, Jaromir ^{[1
]}

机构：

[1] Palacky Univ, Fac Sci, Dept Opt, Olomouc 77200, Czech Republic

[2] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

multiphoton processes; programmable logic devices; quantum gates; quantum optics; teleportation; EXPERIMENTAL REALIZATION; IMPLEMENTATION; COMPUTATION; ALGORITHM; STATE; PAIRS;

D O I：

10.1103/PhysRevA.79.050304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate a programmable quantum gate that applies a sign flip operation to data qubit in an arbitrary basis fully specified by the quantum state of a two-qubit program register. Our linear-optical implementation is inspired by teleportation-based schemes for quantum computing and relies on multiphoton interference and coincidence detection. We confirm the programmability of the gate and its high-fidelity performance by carrying out full quantum process tomography of the resulting operation on data qubit for several different programs.

引用

页数：4

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