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EPL Association, European Physical Society Letters, 5(57), p. 752-758

DOI: 10.1209/epl/i2002-00527-x

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Nature of the glassy phase of RNA secondary structure

Journal article published in 2002 by Florent Krzakala ORCID, Marc Mézard, M. Müller, Markus Muller
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This paper is available in a repository.

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Abstract

7 pages, 1 figure ; We characterize the low temperature phase of a simple model for RNA secondary structures by determining the typical energy scale E(l) of excitations involving l bases. At zero temperature, we find a scaling law E(l) ∼ l^\theta with \theta ≈ 0.23, and this same scaling holds at low enough temperatures. Above a critical temperature, there is a different phase characterized by a relatively flat free energy landscape resembling that of a homopolymer with a scaling exponent \theta=1. These results strengthen the evidence in favour of the existence of a glass phase at low temperatures.