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Realistic time-reversal invariant topological insulators with neutral atoms.
TLDR
An original method to synthesize a gauge field in the near field of an atom chip, which effectively mimics the effects of spin-orbit coupling and produces quantum spin-Hall states is introduced.
Butterfly in the Quantum World: The Story of the Most Fascinating Quantum Fractal
"Butterfly in the Quantum World" by Indu Satija, with contributions by Douglas Hofstadter, is the first book ever to tell the story of the "Hofstadter butterfly", a beautiful and fascinating graph
Localization transition in incommensurate non-Hermitian systems.
  • A. Jazaeri, I. Satija
  • Physics
    Physical review. E, Statistical, nonlinear, and…
  • 15 September 2000
TLDR
A class of one-dimensional lattice models with an incommensurate complex potential V(theta) is found to exhibit a localization transition at /lambda(r)/+/lambda(i)/=1, and the imaginary part of the spectrum is sensitive to the boundary conditions only at the onset to localization.
Symmetry-breaking and Symmetry-restoring Dynamics of a Mixture of Bose-Einstein Condensates in a Double Well
We study the coherent nonlinear tunneling dynamics of a binary mixture of Bose-Einstein condensates in a double-well potential. We demonstrate the existence of a new type of mode associated with the
Noise correlations of hard-core bosons: quantum coherence and symmetry breaking
Noise correlations, such as those observable in the time of flight images of a released cloud, are calculated for hard-core bosonic (HCBs) atoms. These second-order correlations are used to explore
Collision and Symmetry Breaking in the Transition to Strange Nonchaotic Attractors
Strange nonchaotic attractors (SNAs) can be created due to the collision of an invariant curve with itself. This novel "homoclinic" transition to SNAs occurs in quasiperiodically driven maps which
Counter-propagating edge modes and topological phases of a kicked quantum Hall system.
TLDR
It is shown that the pair of Floquet edge modes are protected by the chiral (sublattice) symmetry, and that they are robust against static disorder, and points to the important role played by symmetry in classifying topological properties of driven systems.
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