Form factor of a quantum graph in a weak magnetic field

Taro Nagao, Keiji Saito

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Using the periodic orbit theory, we evaluate the form factor of a quantum graph to which a very weak magnetic field is applied. The first correction to the diagonal approximation describing the transition between the universality classes is shown to be in agreement with Pandey and Mehta's formula of parametric random matrix theory.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number4-5
Publication statusPublished - 2003 May 19
Externally publishedYes


  • Periodic orbit theory
  • Quantum graph
  • Random matrix

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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