Half adder capabilities of a coupled quantum dot device

P Pfeffer; F Hartmann; I Neri; A Schade; M Emmerling; M Kamp; L Gammaitoni; Sven Hoefling; L Worschech

doi:10.1088/0957-4484/27/21/215201

Half adder capabilities of a coupled quantum dot device

P Pfeffer, F Hartmann, I Neri, A Schade, M Emmerling, M Kamp, L Gammaitoni, Sven Hoefling, L Worschech

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

Abstract

In this paper we demonstrate two realizations of a half adder based on a voltage-rectifying mechanism involving two Coulomb-coupled quantum dots. First, we examine the ranges of operation of the half adder's individual elements, the AND and XOR gates, for a single rectifying device. It allows a switching between the two gates by a control voltage and thus enables a clocked half adder operation. The logic gates are shown to be reliably operative
in a broad noise amplitude range with negligible error probabilities. Subsequently, we study the implementation of the half adder in a combined double-device consisting of two individually tunable rectifiers. We show that this double device allows a simultaneous operation of both relevant gates at once. The presented devices draw their power solely from electronic fluctuations and are therefore an advancement in the field of energy efficient and autonomous electronics.

Original language	English
Number of pages	7
Journal	Nanotechnology
Volume	27
Issue number	21
Early online date	15 Apr 2016
DOIs	https://doi.org/10.1088/0957-4484/27/21/215201
Publication status	Published - 27 May 2016

Keywords

Nanoelectronics
Half adder
Noise
Rectification
Autonomous electronics

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Pfeffer_2016_Nanotech_AAM
© 2016, IOP Publishing Ltd. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at iopscience.iop.org / https://dx.doi.org/10.1088/0957-4484/27/21/215201
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title = "Half adder capabilities of a coupled quantum dot device",

abstract = "In this paper we demonstrate two realizations of a half adder based on a voltage-rectifying mechanism involving two Coulomb-coupled quantum dots. First, we examine the ranges of operation of the half adder's individual elements, the AND and XOR gates, for a single rectifying device. It allows a switching between the two gates by a control voltage and thus enables a clocked half adder operation. The logic gates are shown to be reliably operativein a broad noise amplitude range with negligible error probabilities. Subsequently, we study the implementation of the half adder in a combined double-device consisting of two individually tunable rectifiers. We show that this double device allows a simultaneous operation of both relevant gates at once. The presented devices draw their power solely from electronic fluctuations and are therefore an advancement in the field of energy efficient and autonomous electronics.",

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note = "We gratefully acknowledge nancial support from the European Union (FPVII, 2007- 2013) under grant agreement no 256959 NANOPOWER and grant agreement no 318287 LANDAUER as well as from the state of Bavaria. ",

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AU - Pfeffer, P

AU - Hartmann, F

AU - Neri, I

AU - Schade, A

AU - Emmerling, M

AU - Kamp, M

AU - Gammaitoni, L

AU - Hoefling, Sven

AU - Worschech, L

N1 - We gratefully acknowledge nancial support from the European Union (FPVII, 2007- 2013) under grant agreement no 256959 NANOPOWER and grant agreement no 318287 LANDAUER as well as from the state of Bavaria.

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N2 - In this paper we demonstrate two realizations of a half adder based on a voltage-rectifying mechanism involving two Coulomb-coupled quantum dots. First, we examine the ranges of operation of the half adder's individual elements, the AND and XOR gates, for a single rectifying device. It allows a switching between the two gates by a control voltage and thus enables a clocked half adder operation. The logic gates are shown to be reliably operativein a broad noise amplitude range with negligible error probabilities. Subsequently, we study the implementation of the half adder in a combined double-device consisting of two individually tunable rectifiers. We show that this double device allows a simultaneous operation of both relevant gates at once. The presented devices draw their power solely from electronic fluctuations and are therefore an advancement in the field of energy efficient and autonomous electronics.

AB - In this paper we demonstrate two realizations of a half adder based on a voltage-rectifying mechanism involving two Coulomb-coupled quantum dots. First, we examine the ranges of operation of the half adder's individual elements, the AND and XOR gates, for a single rectifying device. It allows a switching between the two gates by a control voltage and thus enables a clocked half adder operation. The logic gates are shown to be reliably operativein a broad noise amplitude range with negligible error probabilities. Subsequently, we study the implementation of the half adder in a combined double-device consisting of two individually tunable rectifiers. We show that this double device allows a simultaneous operation of both relevant gates at once. The presented devices draw their power solely from electronic fluctuations and are therefore an advancement in the field of energy efficient and autonomous electronics.

KW - Nanoelectronics

KW - Half adder

KW - Noise

KW - Rectification

KW - Autonomous electronics

U2 - 10.1088/0957-4484/27/21/215201

DO - 10.1088/0957-4484/27/21/215201

M3 - Article

SN - 0957-4484

VL - 27

JO - Nanotechnology

JF - Nanotechnology

IS - 21

ER -

Half adder capabilities of a coupled quantum dot device

Abstract

Keywords

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