TY - JOUR
T1 - Nonperturbative effects on the string world sheet
AU - Dine, M.
AU - Seiberg, N.
AU - Wen, X. G.
AU - Witten, E.
N1 - Funding Information:
The work of M.D. was supported in part by NSF grant PHY-82-17352, that of N.S. by DOE contract DE-AC02-76ER02220 and that of X.G.W. and E.W. by NSF grant PHY-80-19754. We would like to thank S. Yankielowicz for discussion.
PY - 1986/12/22
Y1 - 1986/12/22
N2 - We show that the space-time superpotential, which is known to receive no string theoretic corrections in finite orders in α′, is modified by world-sheet instantons. This has a number of interesting consequences for the physics of compactification schemes which lead to low-energy supersymmetry. We also present an argument that left-right symmetric Calabi-Yau spaces lead to conformally invariant sigma models both perturbatively and nonperturbatively.
AB - We show that the space-time superpotential, which is known to receive no string theoretic corrections in finite orders in α′, is modified by world-sheet instantons. This has a number of interesting consequences for the physics of compactification schemes which lead to low-energy supersymmetry. We also present an argument that left-right symmetric Calabi-Yau spaces lead to conformally invariant sigma models both perturbatively and nonperturbatively.
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U2 - 10.1016/0550-3213(86)90418-9
DO - 10.1016/0550-3213(86)90418-9
M3 - Article
AN - SCOPUS:0010075818
SN - 0550-3213
VL - 278
SP - 769
EP - 789
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 4
ER -