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Joint Technion and University of Haifa Combinatorics Seminar
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The next meeting of the Combinatorics Seminar will take place on Wednesday,
December 15 in *University of Haifa*.
 
** NOTICE THE CHANGE IN TIME. FOLLOWING REQUESTS OF SOME OF THE
PARTICIPANTS, WE WILL SWITCH TO 13:10 **
 
Speaker: Toufik Mansour (U. of Haifa)
 
Time: Wednesday, December 15, 13:10
 
Place: Science and Education Building, room #614 (6'th floor), University of
Haifa.
 
Title: Diffusion on an Ising chain with kinks
 
Abstract:
 
We count the number of histories between the two degenerate minimum energy
configurations of the Ising model on a chain, as a function of the length n
and the number d of kinks that appear above the critical temperature. This
is equivalent to counting permutations of length n avoiding certain
subsequences depending on d. We give explicit generating functions and
compute the asymptotics. The setting considered has a role when describing
dynamics induced by quantum Hamiltonians with deconfined quasi-particles.
 
Joint work with Alioscia Hamma and Simone Severini
 
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Technion Math Net-2 (TECHMATH2)
Editor: Michael Cwikel   <techm@math.technion.ac.il> 
Announcement from: Raphael Yuster   <raphael.yuster@gmail.com>