66 citations · 460 across the 27 of their papers we have counts for
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Verification of exceptional points in the collapse dynamics of Bose-Einstein condensates
Jonas Brinker, Jacob Fuchs, Jörg Main +2
In Bose-Einstein condensates with an attractive contact interaction the stable ground state and an unstable excited state emerge in a tangent bifurcation at a critical value of the…
Normal form expansions and thermal decay rates of Bose-Einstein condensates with short- and long-range interaction
Andrej Junginger, Teresa Schaller, Gela Hämmerling +2
The thermally induced coherent collapse of Bose-Einstein condensates at finite temperature is the dominant decay mechanism near the critical scattering length in condensates with a…
Coupling approach for the realization of a -symmetric potential for a Bose-Einstein condensate in a double well
Fabian Single, Holger Cartarius, Günter Wunner +1
We show how non-Hermitian potentials used to describe probability gain and loss in effective theories of open quantum systems can be achieved by a coupling of the system to an envi…
Classical dynamics and localization of resonances in the high energy region of the hydrogen atom in crossed fields
Frank Schweiner, Jörg Main, Holger Cartarius +1
When superimposing the potentials of external fields on the Coulomb potential of the hydrogen atom a saddle point appears, which is called the Stark saddle point. For energies slig…
Realizing PT-symmetric non-Hermiticity with ultra-cold atoms and Hermitian multi-well potentials
Manuel Kreibich, Jörg Main, Holger Cartarius +1
We discuss the possibility of realizing a non-Hermitian, i.e. an open two-well system of ultra-cold atoms by enclosing it with additional time-dependent wells that serve as particl…