001     885927
005     20210203083947.0
020 _ _ |a 978-3-95806-505-5
024 7 _ |2 Handle
|a 2128/25995
024 7 _ |2 ISSN
|a 1868-8489
037 _ _ |a FZJ-2020-04183
041 _ _ |a English
100 1 _ |0 P:(DE-Juel1)167542
|a Willsch, Dennis
|b 0
|e Corresponding author
|g male
|u fzj
245 _ _ |a Supercomputer simulations of transmon quantum computers
|f 2017-01-01 - 2020-01-31
260 _ _ |a Jülich
|b Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
|c 2020
300 _ _ |a IX, 237 S.
336 7 _ |2 DataCite
|a Output Types/Dissertation
336 7 _ |0 PUB:(DE-HGF)3
|2 PUB:(DE-HGF)
|a Book
|m book
336 7 _ |2 ORCID
|a DISSERTATION
336 7 _ |2 BibTeX
|a PHDTHESIS
336 7 _ |0 2
|2 EndNote
|a Thesis
336 7 _ |0 PUB:(DE-HGF)11
|2 PUB:(DE-HGF)
|a Dissertation / PhD Thesis
|b phd
|m phd
|s 1603981364_12858
336 7 _ |2 DRIVER
|a doctoralThesis
490 0 _ |a Schriften des Forschungszentrums Jülich. IAS Series
|v 45
502 _ _ |a RWTH Aachen, Diss., 2020
|b Dr
|c RWTH Aachen
|d 2020
|o 2020-07-07
520 _ _ |a We develop a simulator for quantum computers composed of superconducting transmon qubits. The simulation model supports an arbitrary number of transmons and resonators. Quantum gates are implemented by time-dependent pulses. Nontrivial effects such as crosstalk, leakage to non-computational states, entanglement between transmons and resonators, and control errors due to the pulses are inherently included. The time evolution of the quantum computer is obtained by solving the time-dependent Schrödinger equation. The simulation algorithm shows excellent scalability on high-performance supercomputers. We present results for the simulation of up to 16 transmons and resonators. Additionally, the model can be used to simulate environments, and we demonstrate the transition from an isolated system to an open quantum system governed by a Lindblad master equation. We also describe a procedure to extract model parameters from electromagnetic simulations or experiments. We compare simulation results to experiments on several NISQ processors of the IBM Q Experience. We find nearly perfect agreement between simulation and experiment for quantum circuits designed to probe crosstalk in transmon systems. By studying common gate metrics such as the fidelity or the diamond distance, we find that they cannot reliably predict the performance of repeated gate applications or practical quantum algorithms. As an alternative, we find that the results from two-transmon gate set tomography have an exceptional predictive power. Finally, we test a protocol from the theory of quantum error correction and fault tolerance. We find that the protocol systematically improves the performance of transmon quantum computers in the presence of characteristic control and measurement errors.
536 _ _ |0 G:(DE-HGF)POF3-511
|a 511 - Computational Science and Mathematical Methods (POF3-511)
|c POF3-511
|f POF III
|x 0
856 4 _ |u https://juser.fz-juelich.de/record/885927/files/IAS_Series_45.pdf
|y OpenAccess
856 4 _ |u https://juser.fz-juelich.de/record/885927/files/IAS_Series_45.pdf?subformat=pdfa
|x pdfa
|y OpenAccess
909 C O |o oai:juser.fz-juelich.de:885927
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910 1 _ |0 I:(DE-588b)5008462-8
|6 P:(DE-Juel1)167542
|a Forschungszentrum Jülich
|b 0
|k FZJ
913 1 _ |0 G:(DE-HGF)POF3-511
|1 G:(DE-HGF)POF3-510
|2 G:(DE-HGF)POF3-500
|3 G:(DE-HGF)POF3
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|a DE-HGF
|b Key Technologies
|l Supercomputing & Big Data
|v Computational Science and Mathematical Methods
|x 0
914 1 _ |y 2020
915 _ _ |0 StatID:(DE-HGF)0510
|2 StatID
|a OpenAccess
915 _ _ |0 LIC:(DE-HGF)CCBY4
|2 HGFVOC
|a Creative Commons Attribution CC BY 4.0
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)VDB1106
|k IAS
|l Institute for Advanced Simulation
|x 0
920 1 _ |0 I:(DE-Juel1)JSC-20090406
|k JSC
|l Jülich Supercomputing Center
|x 1
980 _ _ |a phd
980 _ _ |a VDB
980 _ _ |a UNRESTRICTED
980 _ _ |a book
980 _ _ |a I:(DE-Juel1)VDB1106
980 _ _ |a I:(DE-Juel1)JSC-20090406
980 1 _ |a FullTexts


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