Spatial transfer of entangled states in the correlated quantum dots system

被引：2

作者：

Maslova, N. S. ^{[1
,2
]}

Mantsevich, V. N. ^{[2
,3
]}

Arseyev, P., I ^{[4
]}

Sokolov, I. M. ^{[5
]}

机构：

[1] Lomonosov Moscow State Univ, Dept Phys, Chair Quantum Elect, Moscow 119991, Russia

[2] Lomonosov Moscow State Univ, Quantum Technol Ctr, Dept Phys, Moscow 119991, Russia

[3] Lomonosov Moscow State Univ, Dept Phys, Chair Semicond & Cryoelect, Moscow 119991, Russia

[4] RAS, PN Lebedev Phys Inst, Moscow 119991, Russia

[5] Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany

来源：

LASER PHYSICS LETTERS | 2022年 / 19卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

entanglement; quantum dots; fidelity; SPINS;

D O I：

10.1088/1612-202X/ac6250

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a protocol for spatial 'stretching' of an initially prepared entangled state along chains of quantum dots (QDs) or quantum wires arranged in perpendicular directions. We theoretically analyze such stretching for a triplet superposition of symmetric and antisymmetric single-electron states with opposite spins formed in a diamond-like arrangement of four QDs. Under specific choice of parameters of the system, the probability amplitude to find the system in an entangled state localized at the end dots of the chains can reach unity at particular instants of time.

引用

页数：6

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