101 citations · 363 across the 33 of their papers we have counts for
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Excited states in the twisted XXZ spin chain
T. Nassar, O. Tirkkonen
We compute the finite size spectrum for the spin 1/2 XXZ chain with twisted boundary conditions, for anisotropy in the regime , and arbitrary twist . The string hypoth…
G/G models as the strong coupling limit of topologically massive gauge theory
G. Grignani, G. Semenoff, P. Sodano +1
We show that the problem of computing the vacuum expectation values of gauge invariant operators in the strong coupling limit of topologically massive gauge theory is equivalent to…
Charge Screening in the Finite Temperature Schwinger Model
G. Grignani, G. Semenoff, P. Sodano +1
We compute the effective action and correlators of the Polyakov loop operator in the Schwinger model at finite temperature and discuss the realization of the discrete symmetries th…
Charge Screening and Confinement in Hot 3-D QED
G. Grignani, G. Semenoff, P. Sodano +1
We examine the possibility of a confinement-deconfinement phase transition at finite temperature in both parity invariant and topologically massive three-dimensional quantum electr…
CONNECTIONS of the LIOUVILLE MODEL and XXZ SPIN CHAIN
L. D. FADDEEV, O. TIRKKONEN
The quantum theory of the Liouville model with imaginary field is considered using the quantum inverse scattering method. An integrable structure with nontrivial spectral parameter…
Equivariance, BRST and Superspace
Antti J. Niemi, O. Tirkkonen
The structure of equivariant cohomology in non-abelian localization formulas and topological field theories is discussed. Equivariance is formulated in terms of a nilpotent BRST sy…