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5 papers · 2 filters
Random Oracles in a Quantum World
Dan Boneh, Özgür Dagdelen, Marc Fischlin +3
The interest in post-quantum cryptography - classical systems that remain secure in the presence of a quantum adversary - has generated elegant proposals for new cryptosystems. Som…
Topological order in an exactly solvable 3D spin model
Sergey Bravyi, Bernhard Leemhuis, Barbara M. Terhal
We study a 3D generalization of the toric code model introduced recently by Chamon. This is an exactly solvable spin model with six-qubit nearest neighbor interactions on an FCC la…
Majorana Fermion Codes
Sergey Bravyi, Bernhard Leemhuis, Barbara M. Terhal
We initiate the study of Majorana fermion codes. These codes can be viewed as extensions of Kitaev's 1D model of unpaired Majorana fermions in quantum wires to higher spatial dimen…
Atomic decay near a quantized medium of absorbing scatterers
L. G. Suttorp, A. J. van Wonderen
The decay of an excited atom in the presence of a medium that both scatters and absorbs radiation is studied with the help of a quantum-electrodynamical model. The medium is repres…
Spatially Resolved Excitation of Rydberg Atoms and Surface Effects on an Atom Chip
Atreju Tauschinsky, Rutger M. T. Thijssen, S. Whitlock +2
We demonstrate spatially resolved, coherent excitation of Rydberg atoms on an atom chip. Electromagnetically induced transparency (EIT) is used to investigate the properties of the…