123 citations · 561 across the 17 of their papers we have counts for
18 papers
The soliton nature of the super-Klein tunneling effect
Francisco Correa, Luis Inzunza, Olaf Lechtenfeld
We establish a relationship between the Davey--Stewartson II (DS II) integrable system in dimensions and quasi-exactly solvable planar interacting Dirac Hamiltonians that…
Coupling and particle number intertwiners in the Calogero model
Francisco Correa, Luis Inzunza, Olaf Lechtenfeld
It is long known that quantum Calogero models feature intertwining operators, which increase or decrease the coupling constant by an integer amount, for any fixed number of particl…
The tetrahexahedric angular Calogero model
Francisco Correa, Olaf Lechtenfeld
The spherical reduction of the rational Calogero model (of type and after removing the center of mass) is considered as a maximally superintegrable quantum system, which…
New Approach to Duality-Invariant Nonlinear Electrodynamics
Evgeny Ivanov, Olaf Lechtenfeld, Boris Zupnik
We survey a new approach to the duality-invariant systems of nonlinear electrodynamics, based on introducing auxiliary bi-spinor fields. In this approach, the entire information ab…
Instantons and Chern-Simons flows in 6, 7 and 8 dimensions
Olaf Lechtenfeld
The existence of K-instantons on a cylinder M^7 = R_tau x K/H over a homogeneous nearly K"ahler 6-manifold K/H requires a conformally parallel or a cocalibrated G_2-structure on M^…
Quantum N=3, d=3 Chern-Simons Matter Theories in Harmonic Superspace
I. L. Buchbinder, E. A. Ivanov, O. Lechtenfeld +3
We develop the background field method for studying classical and quantum aspects of N=3, d=3 Chern-Simons and matter theories in N=3 harmonic superspace. As one of the immediate c…