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12 papers · 1 filter
Identifying a Two-State Hamiltonian in the Presence of Decoherence
Jared H. Cole, Andrew D. Greentree, Daniel K. L. Oi +3
Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is dec…
Precision characterisation of two-qubit Hamiltonians via entanglement mapping
Jared H. Cole, Simon J. Devitt, Lloyd C. L. Hollenberg
We show that the general Heisenberg Hamiltonian with non-uniform couplings can be characterised by mapping the entanglement it generates as a function of time. Identification of th…
Bethe Ansatz Solution of the Asymmetric Exclusion Process with Open Boundaries
Jan de Gier, Fabian H. L. Essler
We derive the Bethe ansatz equations describing the complete spectrum of the transition matrix of the partially asymmetric exclusion process with the most general open boundary con…
Quantum information transport to multiple receivers
Andrew D. Greentree, Simon J. Devitt, Lloyd C. L. Hollenberg
The importance of transporting quantum information and entanglement with high fidelity cannot be overemphasized. We present a scheme based on adiabatic passage that allows for tran…
A Taxonomy of Data Grids for Distributed Data Sharing, Management and Processing
Srikumar Venugopal, Rajkumar Buyya, Kotagiri Ramamohanarao
Data Grids have been adopted as the platform for scientific communities that need to share, access, transport, process and manage large data collections distributed worldwide. They…
On the continuous spectral component of the Floquet operator for a periodically kicked quantum system
J. M. McCaw, B. H. J. McKellar
By a straightforward generalisation, we extend the work of Combescure from rank-1 to rank-N perturbations. The requirement for the Floquet operator to be pure point is established…