Effects of randomness in gapped antiferromagnetic quantum spin chains

Kun Yang, R. A. Hyman, R. N. Bhatt, S. M. Girvin

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The effects of bond randomness are studied for spin chains with excitation gaps in the pure case. Systems with enforced topological structure like the spin-1/2 chain with enforced dimerization and spin-1 chain in the Haldane gapped phase appear very stable against randomness. On the other hand, systems with spontaneously generated topological order like the spin-1/2 chain with spontaneous dimerization are found to be unstable even for weak randomness despite the gap.

Original languageEnglish (US)
Pages (from-to)5096-5098
Number of pages3
JournalJournal of Applied Physics
Volume79
Issue number8 PART 2A
DOIs
StatePublished - Apr 15 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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