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quant-ph2005★ 38 cited
The quantum adiabatic search with decoherence in the instantaneous energy eigenbasis
Johan Åberg, David Kult, Erik Sjöqvist
In Phys. Rev. A {\bf 71}, 060312(R) (2005) the robustness of the local adiabatic quantum search to decoherence in the instantaneous eigenbasis of the search Hamiltonian was examine…
quant-ph2003★ 20 cited
Operations and single particle interferometry
Johan Aberg
Interferometry of single particles with internal degrees of freedom is investigated. We discuss the interference patterns obtained when an internal state evolution device is insert…
quant-ph2003★ 26 cited
Optimal Topological Test for Degeneracies of Real Hamiltonians
Niklas Johansson, Erik Sjöqvist
We consider adiabatic transport of eigenstates of real Hamiltonians around loops in parameter space. It is demonstrated that loops that map to nontrivial loops in the space of eige…