A survey of zero-mode and tadpole effects in light-front quantization, arguing that including them should restore equivalence with equal-time field theory and resolve the phi-fourth critical-coupling discrepancy.
Recovering Lorentz Invariance of DLCQ
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We propose a way to recover Lorentz invariance of the perturbative S matrix in the Discrete Light-Cone Quantization (DLCQ) in the continuum limit without spoiling the trivial vacuum.
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Zero Modes on the Light Front
A survey of zero-mode and tadpole effects in light-front quantization, arguing that including them should restore equivalence with equal-time field theory and resolve the phi-fourth critical-coupling discrepancy.