TY - JOUR
T1 - Vertex operators in background fields
AU - Callan, Curtis Gove
AU - Gan, Z.
N1 - Funding Information:
1 Supported in part by DOE grant DE-AC02-76ER-03072.
PY - 1986/8/4
Y1 - 1986/8/4
N2 - We show that vertex operators for strings propagating in background fields are composite operators of anomalous dimension two in a two-dimensional field theory defined on a curved world-sheet. We show how special features of renormalization theory in curved spacetime are responsible for a number of peculiar features of string physics, including the need for apparently unphysical fields to maintain gauge invariance in string field theory.
AB - We show that vertex operators for strings propagating in background fields are composite operators of anomalous dimension two in a two-dimensional field theory defined on a curved world-sheet. We show how special features of renormalization theory in curved spacetime are responsible for a number of peculiar features of string physics, including the need for apparently unphysical fields to maintain gauge invariance in string field theory.
UR - http://www.scopus.com/inward/record.url?scp=0001003357&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001003357&partnerID=8YFLogxK
U2 - 10.1016/0550-3213(86)90238-5
DO - 10.1016/0550-3213(86)90238-5
M3 - Article
AN - SCOPUS:0001003357
SN - 0550-3213
VL - 272
SP - 647
EP - 660
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 3-4
ER -