Ground state phase diagram of S=1/2 spin ladder system with four spin exchange

Hijii, Keigo; Sakai, Toru

We study a ground state phase diagram of the S=1/2 two leg Heisenberg spin ladder system with a four spin exchange. We find a quantum phase transition investigating energy level structures by a numerical exact diagonalization method and the phenomenological renormalization group method.

Language	:	Japanese
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Meeting title	:	日本物理学会2013年秋季大会(物性)
Held date	:	2013/09
Location (city)	:	徳島
Location (country)	:	日本
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Registration No. : BB20131895
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