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- The University of QueenslandAU9 papers
- University College LondonGB4 papers
- California Institute of TechnologyUS3 papers
- Centre for Quantum Computation and Communication TechnologyAU3 papers
- ARC Centre of Excellence for Engineered Quantum SystemsAU2 papers
- Los Alamos National LaboratoryUS2 papers
- Louisiana State UniversityUS2 papers
- Macquarie UniversityAU2 papers
- Perimeter InstituteCA2 papers
- The University of SydneyAU2 papers
- University of CalgaryCA2 papers
- University of CambridgeGB2 papers
9 papers · 1 filter
Optimizing quantum process tomography with unitary 2-designs
A. J. Scott
We show that weighted unitary 2-designs define optimal measurements on the system-ancilla output state for ancilla-assisted process tomography of unital quantum channels. Examples…
Photon statistics from a resonantly driven quantum dot
Ahsan Nazir
Photon correlations in the emission of a resonantly driven quantum dot are investigated, accounting for the influence of the solid-state phonon environment. An analytical expressio…
Generic local distinguishability and completely entangled subspaces
Jonathan Walgate, A. J. Scott
A subspace of a multipartite Hilbert space is completely entangled if it contains no product states. Such subspaces can be large with a known maximum size, S, approaching the full…
Entanglement-free Heisenberg-limited phase estimation
B. L. Higgins, D. W. Berry, S. D. Bartlett +2
Measurement underpins all quantitative science. A key example is the measurement of optical phase, used in length metrology and many other applications. Advances in precision measu…
Entanglement, EPR-correlations, Bell-nonlocality, and Steering
S. J. Jones, H. M. Wiseman, A. C. Doherty
In a recent work [Phys. Rev. Lett. {\bf 98}, 140402 (2007)] we defined ``steering'', a type of quantum nonlocality that is logically distinct from both nonseparability and Bell-non…
Optimality of feedback control strategies for qubit purification
Howard M. Wiseman, Luc Bouten
Recently two papers [K. Jacobs, Phys. Rev. A {\bf 67}, 030301(R) (2003); H. M. Wiseman and J. F. Ralph, New J. Physics {\bf 8}, 90 (2006)] have derived control strategies for rapid…