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Decoherence from a Chaotic Environment: An Upside Down "Oscillator" as a Model
Robin Blume-Kohout, Wojciech H. Zurek
Chaotic evolutions exhibit exponential sensitivity to initial conditions. This suggests that even very small perturbations resulting from weak coupling of a quantum chaotic environ…
Compatibility of quantum states
David Poulin, Robin Blume-Kohout
We introduce a measure of the compatibility between quantum states--the likelihood that two density matrices describe the same object. Our measure is motivated by two elementary re…
Climbing Mount Scalable: Physical-Resource Requirements for a Scalable Quantum Computer
Robin Blume-Kohout, Carlton M. Caves, Ivan H. Deutsch
The primary resource for quantum computation is Hilbert-space dimension. Whereas Hilbert space itself is an abstract construction, the number of dimensions available to a system is…