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1988
One of the embarrassments of string field theory [1, 2] is that it has fewer symmetries than the first quantized approach. Reparameterization invariance is nowhere to be seen, which accounts for the fact that the midpoints and endpoints of strings become special points.
openaire +2 more sources
One of the embarrassments of string field theory [1, 2] is that it has fewer symmetries than the first quantized approach. Reparameterization invariance is nowhere to be seen, which accounts for the fact that the midpoints and endpoints of strings become special points.
openaire +2 more sources