1305.5678 (C. Antón et al.)

Implementation of a logic AND gate with polariton condensate bullets    [PDF]

C. Antón, T. C. H. Liew, J. Cuadra, M. D. Martín, P. S. Eldridge, Z. Hatzopoulos, G. Stavrinidis, P. G. Savvidis, L. Viña

We demonstrate the realization of an AND gate in a semiconductor microcavity ridge by means of propagating polariton condensates excited non-resonantly. A combination of two pulsed excitation beams, with a proper choice of their spatial separation and time delay, produces a potential land- scape modulation that traps a polariton condensate at the border of the ridge. The formation of this condensate takes place after energy relaxation, including stimulated scattering, of propagating ballistic polaritons. The experimental results are interpreted in the light of simulations based on a generalized Gross-Pitaevskii equation.

View original: http://arxiv.org/abs/1305.5678