718 citations · 12.6k across the 197 of their papers we have counts for
10 papers · 1 filter
The Low-level Spectrum of the String
H. Lu, B. E. W. Nilsson, C. N. Pope +2
We investigate the spectrum of physical states in the string theory, up to level 2 for a multi-scalar string, and up to level 4 for the two-scalar string. The (open) st…
Physical States in the String
C. N. Pope
We present a review of some of the recent developments in the study of the string. One of the interesting features of the theory is that the physical spectrum includes states…
Discrete States in the String
C. N. Pope, E. Sezgin, K. S. Stelle +1
We construct the low-lying discrete states of the two-scalar string. This includes states that correspond to the analogues of the ground ring generators of the ordinary two-d…
A Note on Representations of the Algebra
C. N. Pope, X. J. Wang
We explicitly demonstrate that the unitary representations of the algebra and its truncations are just the unitary representations of the Virasoro algebra.
Review of W Strings
C. N. Pope
We review some of the recent developments in the construction of -string theories. These are generalisations of ordinary strings in which the two-dimensional ``worldsheet'' theo…
On Realisations of W Algebras
H. Lu, C. N. Pope
It has been known for some time that algebras can be realised in terms of an energy-momentum tensor together with additional free scalar fields. Some recent results have shown…
New Realisations of W Algebras and W Strings
H. Lu, C. N. Pope, S. Schrans +1
We discuss new realisations of algebras in which the currents are expressed in terms of two arbitrary commuting energy-momentum tensors together with a set of free scalar field…
On Sibling and Exceptional W Strings
H. Lu, C. N. Pope, S. Schrans +1
We discuss the physical spectrum for strings based on the algebras , , , and . For a simply-laced string, we find a connection with the …
The Complete Spectrum of the String
H. Lu, C. N. Pope, S. Schrans +1
We obtain the complete physical spectrum of the string, for arbitrary . The constraints freeze coordinates, while the remaining coordinates appear in the curre…
Symmetry of Gravity
C. N. Pope
Two-dimensional gravity in the light-cone gauge was shown by Polyakov to exhibit an underlying Kac-Moody symmetry, which may be used to express the energy-momentum tensor…