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@ARTICLE{Riwar:904553,
      author       = {Riwar, Roman},
      title        = {{C}harge quantization and detector resolution},
      journal      = {SciPost physics},
      volume       = {10},
      number       = {4},
      issn         = {2542-4653},
      address      = {Amsterdam},
      publisher    = {SciPost Foundation},
      reportid     = {FZJ-2021-06123},
      pages        = {093},
      year         = {2021},
      abstract     = {Charge quantization, or the absence thereof, is a central
                      theme in quantum circuit theory, with dramatic consequences
                      for the predicted circuit dynamics. Very recently, the
                      question of whether or not charge should actually be
                      described as quantized has enjoyed renewed widespread
                      interest, with however seemingly contradictory propositions.
                      Here, we intend to reconcile these different approaches, by
                      arguing that ultimately, charge quantization is not an
                      intrinsic system property, but instead depends on the
                      spatial resolution of the charge detector. We show that the
                      latter can be directly probed by unique geometric signatures
                      in the correlations of the supercurrent. We illustrate these
                      findings at the example Josephson junction arrays in the
                      superinductor regime, where the transported charge appears
                      to be continuous. Finally, we comment on potential
                      consequences of charge quantization beyond superconducting
                      circuits.},
      cin          = {IAS-3 / PGI-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-3-20090406 / I:(DE-Juel1)PGI-2-20110106},
      pnm          = {5224 - Quantum Networking (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5224},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000718011700003},
      doi          = {10.21468/SciPostPhys.10.4.093},
      url          = {https://juser.fz-juelich.de/record/904553},
}