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

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. Furthermore, we demonstrate that this interaction constrains the sustainable number of single-qubit operations per second for a given cooling capacity.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); The Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1439956
Alternate Identifier(s):
OSTI ID: 1544438
Grant/Contract Number:  
[AC05-00OR22725]
Resource Type:
Accepted Manuscript
Journal Name:
Physics Letters. A
Additional Journal Information:
[ Journal Volume: 382; Journal Issue: 32]; Journal ID: ISSN 0375-9601
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; Silicon qubit; Thermodynamic limit; Quantum computing

Citation Formats

Lougovski, Pavel, and Peters, Nicholas A. Thermodynamic effects of single-qubit operations in silicon-based quantum computing. United States: N. p., 2018. Web. doi:10.1016/j.physleta.2018.05.027.
Lougovski, Pavel, & Peters, Nicholas A. Thermodynamic effects of single-qubit operations in silicon-based quantum computing. United States. doi:10.1016/j.physleta.2018.05.027.
Lougovski, Pavel, and Peters, Nicholas A. Mon . "Thermodynamic effects of single-qubit operations in silicon-based quantum computing". United States. doi:10.1016/j.physleta.2018.05.027. https://www.osti.gov/servlets/purl/1439956.
@article{osti_1439956,
title = {Thermodynamic effects of single-qubit operations in silicon-based quantum computing},
author = {Lougovski, Pavel and Peters, Nicholas A.},
abstractNote = {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. Furthermore, we demonstrate that this interaction constrains the sustainable number of single-qubit operations per second for a given cooling capacity.},
doi = {10.1016/j.physleta.2018.05.027},
journal = {Physics Letters. A},
number = [32],
volume = [382],
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

FIG. 1 FIG. 1: Average Zeeman energy change of the 29Si nuclear spin (normalized to kT) as a function of the single-qubit rotation angle around X axis.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.