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We also show the existence of a critical particle density n<jats:sub>c<\/jats:sub>= N\/L<jats:sub>c<\/jats:sub>, below that the particles spontaneously organize into clusters which can actively rotate. Additionally, the influence of white noise on the clustering is discussed.<\/jats:p>","DOI":"10.1142\/s0218127402005923","type":"journal-article","created":{"date-parts":[[2002,12,19]],"date-time":"2002-12-19T09:46:50Z","timestamp":1040291210000},"page":"2359-2377","source":"Crossref","is-referenced-by-count":22,"title":["COHERENT MOTIONS AND CLUSTERS IN A DISSIPATIVE MORSE RING CHAIN"],"prefix":"10.1142","volume":"12","author":[{"given":"J.","family":"DUNKEL","sequence":"first","affiliation":[{"name":"Institute of Physics, Humboldt University, Invalidenstra\u00dfe 110, D-10115 Berlin, Germany"},{"name":"University of Oxford, Exeter College, OX1 3DP Oxford, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W.","family":"EBELING","sequence":"additional","affiliation":[{"name":"Institute of Physics, Humboldt University, Invalidenstra\u00dfe 110, D-10115 Berlin, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"U.","family":"ERDMANN","sequence":"additional","affiliation":[{"name":"Institute of Physics, Humboldt University, Invalidenstra\u00dfe 110, D-10115 Berlin, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"V. 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