TY - JOUR
T1 - Efficient Criteria of Quantumness for a Large System of Qubits
AU - Watabe, Shohei
AU - Serikow, Michael Zach
AU - Kawabata, Shiro
AU - Zagoskin, Alexandre
N1 - Funding Information:
This paper is partly based on results obtained from a project, JPNP16007, commissioned by the New Energy and Industrial Technology Development Organization (NEDO), Japan. SW was supported by Nanotech CUPAL, National Institute of Advanced Industrial Science and Technology (AIST). AZ was partially supported by NDIAS Residential Fellowship and by the SUPERGALAX project which has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 863313.
Publisher Copyright:
Copyright © 2022 Watabe, Serikow, Kawabata and Zagoskin.
PY - 2022/1/5
Y1 - 2022/1/5
N2 - In order to model and evaluate large-scale quantum systems, e.g., quantum computer and quantum annealer, it is necessary to quantify the “quantumness” of such systems. In this paper, we discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems, which could be used to characterize their degree of quantumness. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution, i.e., the accessibility index. Applying it to the case of D-Wave One superconducting quantum annealing device, we find that its operation as described falls well within the quantum domain.
AB - In order to model and evaluate large-scale quantum systems, e.g., quantum computer and quantum annealer, it is necessary to quantify the “quantumness” of such systems. In this paper, we discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems, which could be used to characterize their degree of quantumness. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution, i.e., the accessibility index. Applying it to the case of D-Wave One superconducting quantum annealing device, we find that its operation as described falls well within the quantum domain.
KW - large system of qubits
KW - quantum annealing (QA)
KW - quantumness
KW - quantumness criterion
KW - random walk
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U2 - 10.3389/fphy.2021.773128
DO - 10.3389/fphy.2021.773128
M3 - Article
AN - SCOPUS:85123190907
VL - 9
JO - Frontiers in Physics
JF - Frontiers in Physics
SN - 2296-424X
M1 - 773128
ER -