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Characterization of Topological States on a Lattice with Chern Number
(Institute of Physics, 2008)
We study Chern numbers to characterize the ground state of strongly interacting systems on a lattice. This method allows us to perform a numerical characterization of bosonic fractional quantum Hall (FQH) states on a lattice ...
Coherent Quantum Optical Control with Subwavelength Resolution
(American Physical Society, 2008)
We suggest a new method for quantum optical control with nanoscale resolution. Our method allows for coherent far-field manipulation of individual quantum systems with spatial selectivity that is not limited by the wavelength ...