Large spin entangled current from a passive device

Avinash Kolli; Simon C. Benjamin; Jose Garcia Coello; Sougato Bose; Brendon W. Lovett

doi:10.1088/1367-2630/11/1/013018

Large spin entangled current from a passive device

Avinash Kolli^*, Simon C. Benjamin, Jose Garcia Coello, Sougato Bose, Brendon W. Lovett

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We show that a large entangled current can be produced from a very simple passive device: a cluster of three resonant quantum dots, tunnel coupled to one input lead and two output leads. Through a rapid first-order resonant process within the cluster, entangled electron pairs are emitted into separate leads. We show that the process is remarkably robust to variations in systems parameters. The simplicity and robustness should permit experimental demonstration in the immediate future. Applications include quantum repeaters and unconditionally secure interfaces.

Original language	English
Article number	013018
Number of pages	10
Journal	New Journal of Physics
Volume	11
DOIs	https://doi.org/10.1088/1367-2630/11/1/013018
Publication status	Published - 16 Jan 2009

Keywords

QUANTUM-DOT

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10.1088/1367-2630/11/1/013018

Cite this

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title = "Large spin entangled current from a passive device",

abstract = "We show that a large entangled current can be produced from a very simple passive device: a cluster of three resonant quantum dots, tunnel coupled to one input lead and two output leads. Through a rapid first-order resonant process within the cluster, entangled electron pairs are emitted into separate leads. We show that the process is remarkably robust to variations in systems parameters. The simplicity and robustness should permit experimental demonstration in the immediate future. Applications include quantum repeaters and unconditionally secure interfaces.",

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AU - Kolli, Avinash

AU - Benjamin, Simon C.

AU - Coello, Jose Garcia

AU - Bose, Sougato

AU - Lovett, Brendon W.

PY - 2009/1/16

Y1 - 2009/1/16

N2 - We show that a large entangled current can be produced from a very simple passive device: a cluster of three resonant quantum dots, tunnel coupled to one input lead and two output leads. Through a rapid first-order resonant process within the cluster, entangled electron pairs are emitted into separate leads. We show that the process is remarkably robust to variations in systems parameters. The simplicity and robustness should permit experimental demonstration in the immediate future. Applications include quantum repeaters and unconditionally secure interfaces.

AB - We show that a large entangled current can be produced from a very simple passive device: a cluster of three resonant quantum dots, tunnel coupled to one input lead and two output leads. Through a rapid first-order resonant process within the cluster, entangled electron pairs are emitted into separate leads. We show that the process is remarkably robust to variations in systems parameters. The simplicity and robustness should permit experimental demonstration in the immediate future. Applications include quantum repeaters and unconditionally secure interfaces.

KW - QUANTUM-DOT

U2 - 10.1088/1367-2630/11/1/013018

DO - 10.1088/1367-2630/11/1/013018

M3 - Article

SN - 1367-2630

VL - 11

JO - New Journal of Physics

JF - New Journal of Physics

M1 - 013018

ER -

Large spin entangled current from a passive device

Abstract

Keywords

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