000860769 001__ 860769 000860769 005__ 20210130000616.0 000860769 0247_ $$2doi$$a10.1063/1.5082723 000860769 0247_ $$2ISSN$$a0021-9606 000860769 0247_ $$2ISSN$$a1089-7690 000860769 0247_ $$2ISSN$$a1520-9032 000860769 0247_ $$2Handle$$a2128/21624 000860769 0247_ $$2pmid$$apmid:30769972 000860769 0247_ $$2WOS$$aWOS:000458879800056 000860769 0247_ $$2altmetric$$aaltmetric:55476596 000860769 037__ $$aFZJ-2019-01432 000860769 082__ $$a530 000860769 1001_ $$0P:(DE-Juel1)172017$$aMousavi, Mahdiyeh$$b0$$ufzj 000860769 245__ $$aActive Brownian ring polymers 000860769 260__ $$aMelville, NY$$bAmerican Institute of Physics$$c2019 000860769 3367_ $$2DRIVER$$aarticle 000860769 3367_ $$2DataCite$$aOutput Types/Journal article 000860769 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1550145189_16807 000860769 3367_ $$2BibTeX$$aARTICLE 000860769 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000860769 3367_ $$00$$2EndNote$$aJournal Article 000860769 520__ $$aThe 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 000860769 536__ $$0G:(DE-HGF)POF3-551$$a551 - Functional Macromolecules and Complexes (POF3-551)$$cPOF3-551$$fPOF III$$x0 000860769 588__ $$aDataset connected to CrossRef 000860769 7001_ $$0P:(DE-Juel1)130665$$aGompper, Gerhard$$b1$$eCorresponding author 000860769 7001_ $$0P:(DE-Juel1)131039$$aWinkler, Roland G.$$b2$$eCorresponding author 000860769 773__ $$0PERI:(DE-600)1473050-9$$a10.1063/1.5082723$$gVol. 150, no. 6, p. 064913 -$$n6$$p064913$$tThe journal of chemical physics$$v150$$x1089-7690$$y2019 000860769 8564_ $$uhttps://juser.fz-juelich.de/record/860769/files/1.5082723.pdf$$yPublished on 2019-02-13. Available in OpenAccess from 2020-02-13. 000860769 8564_ $$uhttps://juser.fz-juelich.de/record/860769/files/1.5082723.pdf?subformat=pdfa$$xpdfa$$yPublished on 2019-02-13. 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