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      "surname": "von Hippel", 
      "given_names": "Georg", 
      "raw_name": "von Hippel, Georg", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "PRISMA Cluster of Excellence, Institut f\u00fcr Kernphysik, Johannes Gutenberg-Universit\u00e4t Mainz, Mainz, D-55099, Germany"
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      "full_name": "von Hippel, Georg", 
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    {
      "raw_name": "Rae, Thomas D.", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Bergische Universit\u00e4t Wuppertal, Gau\u00dfstra\u00dfe 20, Wuppertal, D-42119, Germany"
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      ], 
      "surname": "Rae", 
      "given_names": "Thomas D.", 
      "full_name": "Rae, Thomas D."
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    {
      "raw_name": "Shintani, Eigo", 
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          "country": "Germany", 
          "value": "PRISMA Cluster of Excellence, Institut f\u00fcr Kernphysik, Johannes Gutenberg-Universit\u00e4t Mainz, Mainz, D-55099, Germany"
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        {
          "country": "Japan", 
          "value": "RIKEN Advanced Institute for Computational Science, K\u014dbe, Hy\u014dgo, 650-0047, Japan"
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      "surname": "Shintani", 
      "given_names": "Eigo", 
      "full_name": "Shintani, Eigo"
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    {
      "raw_name": "Wittig, Hartmut", 
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          "country": "Germany", 
          "value": "PRISMA Cluster of Excellence, Institut f\u00fcr Kernphysik, Johannes Gutenberg-Universit\u00e4t Mainz, Mainz, D-55099, Germany"
        }, 
        {
          "country": "Germany", 
          "value": "Helmholtz Institute Mainz, University of Mainz, Mainz, 55099, Germany"
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      "surname": "Wittig", 
      "given_names": "Hartmut", 
      "full_name": "Wittig, Hartmut"
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  "titles": [
    {
      "source": "Elsevier", 
      "title": "Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: An exploratory study"
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      "source": "Elsevier", 
      "value": "We study the performance of all-mode-averaging (AMA) when used in conjunction with a locally deflated SAP-preconditioned solver, determining how to optimize the local block sizes and number of deflation fields in order to minimize the computational cost for a given level of overall statistical accuracy. We find that AMA enables a reduction of the statistical error on nucleon charges by a factor of around two at the same cost when compared to the standard method. As a demonstration, we compute the axial, scalar and tensor charges of the nucleon in Nf=2 lattice QCD with non-perturbatively O( a )-improved Wilson quarks, using O(10,000) measurements to pursue the signal out to source-sink separations of ts\u00e2\u0088\u00bc1.5\u00c2 fm . Our results suggest that the axial charge is suffering from a significant amount (5\u00e2\u0080\u009310%) of excited-state contamination at source-sink separations of up to ts\u00e2\u0088\u00bc1.2\u00c2 fm , whereas the excited-state contamination in the scalar and tensor charges seems to be small."
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