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quant-ph2017★ 13 cited
Balanced gain and loss in Bose-Einstein condensates without PT symmetry
Philipp Lunt, Daniel Haag, Dennis Dast +2
Balanced gain and loss renders the mean-field description of Bose-Einstein condensates PT symmetric. However, any experimental realization has to deal with unbalancing in the gain…
quant-ph2012★ 63 cited
Nonlinear Schrödinger equation for a PT symmetric delta-functions double well
Holger Cartarius, Daniel Haag, Dennis Dast +1
The time-independent nonlinear Schrödinger equation is solved for two attractive delta-function shaped potential wells where an imaginary loss term is added in one well, and a gain…