Geometric entropy, wave functionals, and fermions

Finn Larsen, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


We develop techniques for calculating the ground state wave functional and the geometric entropy for some simple field theories. Special attention is devoted to fermions, which present special technical difficulties in this regard. Explicit calculations are carried through for free mass bosons and fermions in two dimensions, using an adaptation of Unruh′s technique to treat black-hole radiance.

Original languageEnglish (US)
Pages (from-to)280-298
Number of pages19
JournalAnnals of Physics
Issue number2
StatePublished - Nov 1 1995
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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