Fakultät für Physik




String Field Theory – Overview


About the lecture

Time and place

Monday, 14-16 (c.t.) in B101 (Theresienstr. 39)
Friday, 10-12 (c.t.) in A449 (Theresienstr. 37)


  • worldvolume / spacetime descriptions
  • introduction to string theory and CFT
  • free string field theory
  • off-shell amplitudes
  • bosonic string field theory
  • applications (analytic solutions, tachyon condensation, unitarity)
  • superstring field theory
  • quantum effects and renormalization


QFT (renormalization is useful but not necessary).

No pre-knowledge in string theory or CFT is required.


Lecture notes (containing additional details) will be made available.

A selected set of standard references are:

  • Closed Superstring Field Theory and its Applications – De Lacroix, Erbin, Kashyap, Sen, Verma (1703.06410)
  • D-Branes, Tachyons, and String Field Theory – Taylor, Zwiebach (hep-th/0311017)
  • Tachyon Dynamics in Open String Theory – Sen (hep-th/0410103)
  • A Review on Tachyon Condensation in Open String Field Theories – Ohmori (hep-th/0102085)
  • Closed String Field Theory: Quantum Action and the BV Master Equation – Zwiebach (hep-th/9206084)
  • Introduction to string field theory – Siegel (hep-th/0107094)
  • String field theory – Thorn
  • Introduction to Superstrings and M-Theory – Kaku (book)
  • A First Course in String Theory – Zwiebach (book)

Note: All of these references focus on specific aspects and assume a solid knowledge of string theory and/or CFT.

Verantwortlich für den Inhalt: Harold Erbin