Thermodynamic effects of single-qubit operations in silicon-based quantum computing

Pavel Lougovski; Nicholas A. Peters

doi:10.1016/j.physleta.2018.05.027

Thermodynamic effects of single-qubit operations in silicon-based quantum computing

Pavel Lougovski, Nicholas A. Peters

Computational Sciences & Engineering Div

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

1 Scopus citations

Abstract

Silicon-based quantum logic is a promising technology to implement universal quantum computing. It is widely believed that a millikelvin cryogenic environment will be necessary to accommodate silicon-based qubits. This prompts a question of the ultimate scalability of the technology due to finite cooling capacity of refrigeration systems. In this work, we answer this question by studying energy dissipation due to interactions between nuclear spin impurities and qubit control pulses. We demonstrate that this interaction constrains the sustainable number of single-qubit operations per second for a given cooling capacity.

Original language	English
Pages (from-to)	2113-2117
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	382
Issue number	32
DOIs	https://doi.org/10.1016/j.physleta.2018.05.027
State	Published - Aug 17 2018

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). We thank Fahd A. Mohiyaddin and Ryan S. Bennink for useful discussions. This work was performed at Oak Ridge National Laboratory, operated by UT-Battelle for the U.S. Department of Energy under contract no. DE-AC05-00OR22725 . Research sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy. We thank Fahd A. Mohiyaddin and Ryan S. Bennink for useful discussions. This work was performed at Oak Ridge National Laboratory, operated by UT-Battelle for the U.S. Department of Energy under contract no. DE-AC05-00OR22725. Research sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy.

Keywords

Quantum computing
Silicon qubit
Thermodynamic limit

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10.1016/j.physleta.2018.05.027

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abstract = "Silicon-based quantum logic is a promising technology to implement universal quantum computing. It is widely believed that a millikelvin cryogenic environment will be necessary to accommodate silicon-based qubits. This prompts a question of the ultimate scalability of the technology due to finite cooling capacity of refrigeration systems. In this work, we answer this question by studying energy dissipation due to interactions between nuclear spin impurities and qubit control pulses. We demonstrate that this interaction constrains the sustainable number of single-qubit operations per second for a given cooling capacity.",

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Thermodynamic effects of single-qubit operations in silicon-based quantum computing

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