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21 papers · 2 filters
Exact O(d,d) Transformations in WZW Models
David Gershon
Using the algebraic Hamiltonian approach, we derive the exact to all orders O(d,d) transformations of the metric and the dilaton field in WZW and WZW coset models for both compact…
AB and Berry phases for a quantum cloud of charge
Y. Aharonov, S. Coleman, A. S. Goldhaber +5
We investigate the phase accumulated by a charged particle in an extended quantum state as it encircles one or more magnetic fluxons, each carrying half a flux unit. A simple, esse…
Semiclassical vs. Exact Solutions of Charged Black Hole in Four Dimensions and Exact O(d,d) Duality
David Gershon
We derive a charged black hole solution in four dimensions described by WZW coset model. Using the algebraic Hamiltonian method we calculate…
Charge sum rules in N=2 theories
O. Aharony, S. Yankielowicz, A. N. Schellekens
Some errors in section 4 are corrected. No change in the results.
The Many Faces of a Character
Ezer Melzer
We prove an identity between three infinite families of polynomials which are defined in terms of `bosonic', `fermionic', and `one-dimensional configuration' sums. In the limit whe…
Massive-Conformal Dictionary
Ezer Melzer
The finite-volume spectrum of an integrable massive perturbation of a rational conformal field theory interpolates between massive multi-particle states in infinite volume (IR limi…