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Multiplexed quantum transport using commercial off-the-shelf CMOS at sub-kelvin temperatures
- Source :
- NPJ Quantum Information, 6(1), npj Quantum Information, Vol 6, Iss 1, Pp 1-8 (2020)
- Publication Year :
- 2019
-
Abstract
- Continuing advancements in quantum information processing have caused a paradigm shift from research mainly focused on testing the reality of quantum mechanics to engineering qubit devices with numbers required for practical quantum computation. One of the major challenges in scaling toward large-scale solid-state systems is the limited input/output (I/O) connectors present in cryostats operating at sub-kelvin temperatures required to execute quantum logic with high fidelity. This interconnect bottleneck is equally present in the device fabrication-measurement cycle, which requires high-throughput and cryogenic characterization to develop quantum processors. Here we multiplex quantum transport of two-dimensional electron gases at sub-kelvin temperatures. We use commercial off-the-shelf CMOS multiplexers to achieve an order of magnitude increase in the number of wires. Exploiting this technology, we accelerate the development of 300 mm epitaxial wafers manufactured in an industrial CMOS fab and report a remarkable electron mobility of (3.9 ± 0.6) × 105 cm2/Vs and percolation density of (6.9 ± 0.4) × 1010 cm−2, representing a key step toward large silicon qubit arrays. We envision that the demonstration will inspire the development of cryogenic electronics for quantum information, and because of the simplicity of assembly and versatility, we foresee widespread use of similar cryo-CMOS circuits for high-throughput quantum measurements and control of quantum engineered systems.
- Subjects :
- Computer Networks and Communications
FOS: Physical sciences
02 engineering and technology
01 natural sciences
Multiplexer
Quantum logic
lcsh:QA75.5-76.95
0103 physical sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Computer Science (miscellaneous)
Quantum information
010306 general physics
Quantum
Quantum computer
Physics
Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Statistical and Nonlinear Physics
Interconnect bottleneck
021001 nanoscience & nanotechnology
Engineering physics
lcsh:QC1-999
Computational Theory and Mathematics
CMOS
Qubit
lcsh:Electronic computers. Computer science
0210 nano-technology
Quantum Physics (quant-ph)
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 20566387
- Database :
- OpenAIRE
- Journal :
- NPJ Quantum Information, 6(1), npj Quantum Information, Vol 6, Iss 1, Pp 1-8 (2020)
- Accession number :
- edsair.doi.dedup.....47a7c053afe8ce2e54739d18ba39e117