Publications by Martin Kiffner


Dissipation-induced correlations in one-dimensional bosonic systems

New Journal of Physics 13 (2011)

M Kiffner, MJ Hartmann

The quantum dynamics of interacting bosons in a one-dimensional (1D) system is investigated numerically. We consider dissipative and conservative two-particle interactions, and integrate the master equation describing the system dynamics via a time-evolving block-decimation (TEBD) algorithm. Our numerical simulations directly apply to stationary-light polaritons in systems where atoms and photons are confined to the hollow core of a photonic crystal fibre. We show that a two-particle loss term can drive an initially uncorrelated state into a regime where correlations effectively inhibit the dissipation of particles. The correlations induced by two-particle losses are compared with those generated by an elastic repulsion. For the considered time range, we find a similar behaviour in local density-density correlations but we find differences in non-local correlations. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.


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