A zipper with N links. Each link has 2 states: closed (energy = 0) and open...
A zipper with N links. Each link has 2 states: closed (energy = 0) and open (energy = E). We require that the zipper can only unzip from the left end, and that the link number s can only open if all links to the left (1,2,..., s-1) are already open.
(a) What is the partition function for the zipper?
(b) What is the average number of open links in the limit (i) >> τ and (ii) << τ
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A zipper with N links. Each link has 2 states: closed (energy =
0) and open...
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5. Consider a polymer consisting of N links (like links of a chain) of length L. The links are massless. One end of the polymer is fixed at height z = 0. The other end is attached to a mass m. Each link can pivot about its attachment with the previous link or the fixed end so that a link may carry the polymer "up" or "down" a distance L. For example, the figure shows a polymer containing four links,...
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