131 citations · 537 across the 18 of their papers we have counts for
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-symmetric currents of a Bose-Einstein condensate in a triple well
Daniel Haag, Dennis Dast, Holger Cartarius +1
We study the case of -symmetric perturbations of Hermitian Hamiltonians with degenerate eigenvalues using the example of a triple-well system. The degeneracy complica…
Purity oscillations in Bose-Einstein condensates with balanced gain and loss
Dennis Dast, Daniel Haag, Holger Cartarius +1
In this work we present a new generic feature of PT-symmetric Bose-Einstein condensates by studying the many-particle description of a two-mode condensate with balanced gain and lo…
Cusp bifurcation in the eigenvalue spectrum of PT-symmetric Bose-Einstein condensates
Daniel Dizdarevic, Dennis Dast, Daniel Haag +3
A Bose-Einstein condensate in a double-well potential features stationary solutions even for attractive contact interaction as long as the particle number and therefore the interac…