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@ARTICLE{Mousavi:860769,
      author       = {Mousavi, Mahdiyeh and Gompper, Gerhard and Winkler, Roland
                      G.},
      title        = {{A}ctive {B}rownian ring polymers},
      journal      = {The journal of chemical physics},
      volume       = {150},
      number       = {6},
      issn         = {1089-7690},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2019-01432},
      pages        = {064913},
      year         = {2019},
      abstract     = {The conformational and dynamical properties of semiflexible
                      active Brownian ring polymers are investigated analytically.
                      A ring is described by the Gaussian semiflexible polymer
                      model accounting for the finite contour length. Activity is
                      implemented by a Gaussian, non-Markovian stochastic process
                      resembling either an external nonthermal force or a local
                      self-propulsion velocity as for an active Ornstein-Uhlenbeck
                      particle. Specifically, the fluctuation spectrum of
                      normal-mode amplitudes is analyzed. At elevated activities,
                      flexible (tension) modes dominate over bending modes even
                      for semiflexible rings, corresponding to enhanced
                      conformational fluctuations. The fluctuation spectrum
                      exhibits a crossover from a quadratic to a quartic
                      dependence on the mode number with increasing mode number,
                      originating from intramolecular tension, but the relaxation
                      behavior is either dominated by intra-polymer processes or
                      the active stochastic process. A further increase in
                      activity enhances fluctuations at large length scales at the
                      expense of reduced fluctuations at small scales.
                      Conformationally, the mean square ring diameter exhibits
                      swelling qualitatively comparable to liner polymers. The
                      ring’s diffusive dynamics is enhanced, and the mean square
                      displacement shows distinct activity-determined regimes,
                      consecutively, a ballistic, a subdiffusive, and a diffusive
                      regime. The subdiffusive regime disappears gradually with
                      increasing activity},
      cin          = {IAS-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-2-20090406},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551)},
      pid          = {G:(DE-HGF)POF3-551},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30769972},
      UT           = {WOS:000458879800056},
      doi          = {10.1063/1.5082723},
      url          = {https://juser.fz-juelich.de/record/860769},
}