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@article{Barnett:2015:10.1103/PhysRevLett.115.245302,
author = {Barnett, RL and Lee, DKK and Galilo, B},
doi = {10.1103/PhysRevLett.115.245302},
journal = {Physical Review Letters},
title = {Selective population of edge states in a 2D topological band system},
url = {http://dx.doi.org/10.1103/PhysRevLett.115.245302},
volume = {115},
year = {2015}
}

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TY  - JOUR
AB  - We consider a system of interacting spin-one atoms in a hexagonal lattice under the presence of a synthetic gauge field. Quenching the quadratic Zeeman field is shown to lead to a dynamical instability of the edge modes. This, in turn, leads to a spin current along the boundary of the system which grows exponentially fast in time following the quench. Tuning the magnitude of the quench can be used to selectively populate edge modes of different momenta. Implications of the intrinsic symmetries of the Hamiltonian on the dynamics are discussed. The results hold for atoms with both antiferromagnetic and ferromagnetic interactions.
AU  - Barnett,RL
AU  - Lee,DKK
AU  - Galilo,B
DO  - 10.1103/PhysRevLett.115.245302
PY  - 2015///
SN  - 1079-7114
TI  - Selective population of edge states in a 2D topological band system
T2  - Physical Review Letters
UR  - http://dx.doi.org/10.1103/PhysRevLett.115.245302
UR  - http://hdl.handle.net/10044/1/28309
VL  - 115
ER  -

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