TY - JOUR
T1 - New effects in gauge theory from pp-wave superstrings
AU - Klebanov, Igor R.
AU - Spradlin, Marcus
AU - Volovich, Anastasia
PY - 2002/11/14
Y1 - 2002/11/14
N2 - It has recently been observed that IIb string theory in the pp-wave background can be used to calculate certain quantities, such as the dimensions of BMN operators, as exact functions of the effective coupling λ′ = λ/J2. These functions interpolate smoothly between the weak and strong effective coupling regimes of N = 4 SYM theory at large R charge J. In this Letter we use the pp-wave superstring field theory of hep-th/0204146 to study more complicated observables. The expansion of the three-string interaction vertex suggests more complicated interpolating functions which in general give rise to fractional powers of λ′ in physical observables at weak effective coupling.
AB - It has recently been observed that IIb string theory in the pp-wave background can be used to calculate certain quantities, such as the dimensions of BMN operators, as exact functions of the effective coupling λ′ = λ/J2. These functions interpolate smoothly between the weak and strong effective coupling regimes of N = 4 SYM theory at large R charge J. In this Letter we use the pp-wave superstring field theory of hep-th/0204146 to study more complicated observables. The expansion of the three-string interaction vertex suggests more complicated interpolating functions which in general give rise to fractional powers of λ′ in physical observables at weak effective coupling.
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U2 - 10.1016/S0370-2693(02)02841-1
DO - 10.1016/S0370-2693(02)02841-1
M3 - Article
AN - SCOPUS:0001098892
VL - 548
SP - 111
EP - 118
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-2
ER -