
#1
Sep3013, 02:13 AM

P: 77

Hi,
I've recently read an introductory review of Bethe ansatz for antiferromagnetic spin1/2 Heisenberg chains : condmat: 9809163. I understand that the elementary excitations above the ground state in absence of magnetic field are spinons. The article claims that when a finite magnetic field is applied the excitations can be described as psinons, which are 1/2 spin particles (like spinons) and they also represented as holes among the Bethequantum numbers (like spinons). However I couldn't really tell what is the exact difference between these two particles. Can somebody explain this? 



#2
Sep3013, 08:39 AM

Sci Advisor
P: 8,008

Is it http://arxiv.org/abs/condmat/9809163? I couldn't find where they use the word "psinon", although they use "spinon".




#3
Sep3013, 09:16 AM

Mentor
P: 11,255

Also, a Google search for "psinon" turns up nothing remotely related to condensedmatter physics, at least on the first three pages of hits.




#4
Sep3013, 10:13 AM

P: 77

Spinons vs. psinons
Sorry guys, wrong link. It is actually in the third part:
http://arxiv.org/abs/condmat/0008018 Here are some more articles, conserning this topic: http://prb.aps.org/abstract/PRB/v66/i5/e054405 http://prb.aps.org/abstract/PRB/v62/i22/p14871_1 


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