783 citations
- Joint Institute for Nuclear ResearchRU60 papers
- Brookhaven National LaboratoryUS59 papers
- Charles UniversityCZ54 papers
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- Columbia UniversityUS53 papers
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- Centre National de la Recherche ScientifiqueFR51 papers
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4 papers · 2 filters
The simplified Toffoli gate implementation by Margolus is optimal
Guang Song, Andreas Klappenecker
Unitary operations are expressed in the quantum circuit model as a finite sequence of elementary gates, such as controlled-not gates and single qubit gates. We prove that the simpl…
Controllability, Observability and Parameter Identification of two coupled spin 1's
Domenico D'Alessandro
In this paper, we study the control theoretic properties of a couple of interacting spin 1's driven by an electro-magnetic field. In particular, we assume that it is possible to ob…
Model identification for spin networks
Francesca Albertini, Domenico D'Alessandro
We consider the problem of determining the unknown parameters of the Hamiltonian of a network of spin 1/2 particles. In particular, we study experiments in which the system is driv…
Decoherence in quantum spin systems
H. De Raedt, V. V. Dobrovitski
Computer simulations of decoherence in quantum spin systems require the solution of the time-dependent Schrodinger equation for interacting quantum spin systems over extended perio…