Now showing items 1-4 of 4
Robust Optical Delay Lines with Topological Protection
(Nature Publishing Group, 2011)
Phenomena associated with the topological properties of physical systems can be naturally robust against perturbations. This robustness is exemplified by quantized conductance and edge state transport in the quantum Hall ...
Nuclear Spin Cooling Using Overhauser-Field Selective Coherent Population Trapping
(American Physical Society, 2010)
We show that a quantum interference effect in optical absorption from two electronic spin states of a solid-state emitter can be used to prepare the surrounding environment of nuclear spins in well-defined states, thereby ...
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 ...