1992/11/06 by Robert C. Myers, Vipul Periwal · 1 citation
Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Continuation #Invariant (physics) #Mathematical physics #Non-critical string theory #Particle physics theoretical and experimental studies #Path integral formulation #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum gravity #Quantum mechanics #Relationship between string theory and quantum field theory #String (physics) #String cosmology #String field theory #String theory #Theoretical physics #hep-th
paper · pdf · doi:10.1103/physrevlett.70.2841
published as Phys.Rev.Lett.70:2841-2844,1993 · 8 pages, iassns-hep-92-20 and McGill/92-48 (references added/corrected)
arxiv created 1992/11/06 · openalex publication_date 1993/05/10 · arxiv updated 2011/07/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Using recent advances in the understanding of noncritical strings, we construct a unique, conformally invariant continuation to off-shell momenta of Polyakov amplitudes in critical string theory. Three-point amplitudes are explicitly calculated. These off-shell amplitudes possess some unusual, apparently stringy, characteristics, which are unlikely to be reproduced in a string field theory. Thus our results may be an indication that some fundamentally new formulation, other than string field theory, will be required to extend our understanding of critical strings beyond the Polyakov path integral.