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- Imperial College LondonGB129 papers
- University of OxfordGB11 papers
- The University of SydneyAU6 papers
- Institute for Quantum Optics and Quantum Information InnsbruckAT5 papers
- Universität InnsbruckAT5 papers
- University of CambridgeGB5 papers
- University of HertfordshireGB5 papers
- Austrian Academy of SciencesAT4 papers
- Queen Mary University of LondonGB4 papers
- Tel Aviv UniversityIL4 papers
- University College LondonGB4 papers
- University of PotsdamDE4 papers
6 papers · 2 filters
Are right angles special? The optimal primitive reference frame
David Jennings
We consider the smallest possible directional reference frames allowed and determine the best one can ever do in preserving quantum information in various scenarios. We find that f…
Controlling qubit arrays with anisotropic XXZ Heisenberg interaction by acting on a single qubit
Rahel Heule, C. Bruder, Daniel Burgarth +1
We investigate anisotropic Heisenberg spin-1/2 chains with control fields acting on one of the end spins, with the aim of exploring local quantum control in arrays of interac…
Markovian Master Equations: A Critical Study
Ángel Rivas, A. Douglas K. Plato, Susana F. Huelga +1
We derive Markovian master equations of single and interacting harmonic systems in different scenarios, including strong internal coupling. By comparing the dynamics resulting from…
Exact mapping between system-reservoir quantum models and semi-infinite discrete chains using orthogonal polynomials
Alex W. Chin, Ángel Rivas, Susana F. Huelga +1
By using the properties of orthogonal polynomials, we present an exact unitary transformation that maps the Hamiltonian of a quantum system coupled linearly to a continuum of boson…
Dynamics of a quantum reference frame undergoing selective measurements and coherent interactions
Mehdi Ahmadi, David Jennings, Terry Rudolph
We consider the dynamics of a quantum directional reference frame undergoing repeated interactions. We first describe how a precise sequence of measurement outcomes affects the ref…
Indirect Quantum Tomography of Quadratic Hamiltonians
Daniel Burgarth, Koji Maruyama, Franco Nori
A number of many-body problems can be formulated using Hamiltonians that are quadratic in the creation and annihilation operators. Here, we show how such quadratic Hamiltonians can…