Title: Simple flexible polymers in a spherical cage
Author(s):

	M. Marenz (Institut für Theoretische Physik, Universität Leipzig, Postfach 100920, 04009 Leipzig, Germany) ,
	J. Zierenberg (Institut für Theoretische Physik, Universität Leipzig, Postfach 100920, 04009 Leipzig, Germany) ,
	H. Arkın (Institut für Theoretische Physik, Universität Leipzig, Postfach 100920, 04009 Leipzig, Germany; Department of Physics Engineering, Faculty of Engineering, Ankara University, Tandogan, 06100 Ankara, Turkey) ,
	W. Janke (Institut für Theoretische Physik, Universität Leipzig, Postfach 100920, 04009 Leipzig, Germany)

We report the results of Monte Carlo simulations investigating the effect of a spherical confinement within a simple model for a flexible homopolymer. We use the parallel tempering method combined with multi-histogram reweighting analysis and multicanonical simulations to investigate thermodynamical observables over a broad range of temperatures, which enables us to describe the behavior of the polymer and to locate the freezing and collapse transitions. We find a strong effect of the spherical confinement on the location of the collapse transition, whereas the freezing transition is hardly effected.

Key words: Monte Carlo simulation, bead-stick polymer, collapse transition, freezing transitions, confinement
PACS: 07.05.Tp, 87.15.A-, 64.70.km, 87.10.Rt

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