Tight and loose shapes in flat entangled dense polymers A. Hanke, R. Metzler, P. G. Dommersnes, Y. Kantor and M. Kardar Eur. Phys. J. E, 12 2 (2003) 347-354 Published online: 21 November 2003 DOI: 10.1140/epje/i2003-10067-9