98 citations · 665 across the 29 of their papers we have counts for
4 papers · 1 filter
Vector-multiplet effective action in the non-anticommutative charged hypermultiplet model
I. L. Buchbinder, O. Lechtenfeld, I. B. Samsonov
We investigate the quantum aspects of a charged hypermultiplet in deformed N=(1,1) superspace with singlet non-anticommutative deformation of supersymmetry. This model is a "star"…
Calogero models and nonlocal conformal transformations
Anton Galajinsky, Olaf Lechtenfeld, Kirill Polovnikov
We propose a universal method of relating the Calogero model to a set of decoupled particles on the real line, which can be uniformly applied to both the conformal and nonconformal…
Moduli-Space Dynamics of Noncommutative Abelian Sigma-Model Solitons
Michael Klawunn, Olaf Lechtenfeld, Stefan Petersen
In the noncommutative (Moyal) plane, we relate exact U(1) sigma-model solitons to generic scalar-field solitons for an infinitely stiff potential. The static k-lump moduli space C^…
Noncommutative Instantons on CP^n
Tatiana A. Ivanova, Olaf Lechtenfeld
We construct explicit solutions of the Hermitian Yang-Mills equations on the noncommutative space C^n_θ. In the commutative limit they coincide with the standard instantons on CP^n…