Rotation and phase-shift operations for a charge qubit in a double quantum dot

Toshimasa Fujisawa; Toshiaki Hayashi; H. D. Cheong; Y. H. Jeong; Yoshiro Hirayama

doi:10.1016/j.physe.2003.11.184

Rotation and phase-shift operations for a charge qubit in a double quantum dot

Toshimasa Fujisawa, Toshiaki Hayashi, H. D. Cheong, Y. H. Jeong, Yoshiro Hirayama

Research output: Contribution to journal › Conference article › peer-review

69 Citations (Scopus)

Abstract

Coherent time evolution of a charge qubit in a semiconductor double quantum dot is demonstrated by means of electrical pulse experiments. The qubit state is manipulated with a rectangular or tailored voltage waveform that controls the energy of the system. The initialization, rotation gate, phase-shift gate, and measurement process are sequencially performed just by changing the voltage in a short time.

Original language	English
Pages (from-to)	1046-1052
Number of pages	7
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	21
Issue number	2-4
DOIs	https://doi.org/10.1016/j.physe.2003.11.184
Publication status	Published - 2004 Mar 1
Externally published	Yes
Event	Proceedings of the Eleventh International Conference on Modulation (MSS11) - Nara, Japan Duration: 2003 Jul 14 → 2003 Jul 18

Keywords

Charge qubit
Double quantum dot
Two-level system

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2003.11.184

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abstract = "Coherent time evolution of a charge qubit in a semiconductor double quantum dot is demonstrated by means of electrical pulse experiments. The qubit state is manipulated with a rectangular or tailored voltage waveform that controls the energy of the system. The initialization, rotation gate, phase-shift gate, and measurement process are sequencially performed just by changing the voltage in a short time.",

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T1 - Rotation and phase-shift operations for a charge qubit in a double quantum dot

AU - Fujisawa, Toshimasa

AU - Hayashi, Toshiaki

AU - Cheong, H. D.

AU - Jeong, Y. H.

AU - Hirayama, Yoshiro

PY - 2004/3/1

Y1 - 2004/3/1

N2 - Coherent time evolution of a charge qubit in a semiconductor double quantum dot is demonstrated by means of electrical pulse experiments. The qubit state is manipulated with a rectangular or tailored voltage waveform that controls the energy of the system. The initialization, rotation gate, phase-shift gate, and measurement process are sequencially performed just by changing the voltage in a short time.

AB - Coherent time evolution of a charge qubit in a semiconductor double quantum dot is demonstrated by means of electrical pulse experiments. The qubit state is manipulated with a rectangular or tailored voltage waveform that controls the energy of the system. The initialization, rotation gate, phase-shift gate, and measurement process are sequencially performed just by changing the voltage in a short time.

KW - Charge qubit

KW - Double quantum dot

KW - Two-level system

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DO - 10.1016/j.physe.2003.11.184

M3 - Conference article

AN - SCOPUS:1642367744

SN - 1386-9477

VL - 21

SP - 1046

EP - 1052

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 2-4

T2 - Proceedings of the Eleventh International Conference on Modulation (MSS11)

Y2 - 14 July 2003 through 18 July 2003

ER -

Rotation and phase-shift operations for a charge qubit in a double quantum dot

Abstract

Keywords

ASJC Scopus subject areas

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