Boundary entropy of one-dimensional quantum systems at low temperature

Daniel Friedan, Anatoly Konechny

Research output: Contribution to journalArticlepeer-review

156 Scopus citations


A gradient formula for the boundary β function, was proved. The formula eliminates the possibility of esoteric asymptotic behavior under renormalization. The gradient formula was expressed as the gradient of the boundary entropy s at fixed nonzero temperature. The basic principles of quantum mechanics and locality were used, and the formula implied equally that the boundary entropy decreased with temperature.

Original languageEnglish (US)
Article number030402
Pages (from-to)030402-1-030402-4
JournalPhysical review letters
Issue number3
StatePublished - Jul 16 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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