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8 papers · 2 filters
Unifying parameter estimation and the Deutsch-Jozsa algorithm for continuous variables
Marcin Zwierz, Carlos A. Pérez-Delgado, Pieter Kok
We reveal a close relationship between quantum metrology and the Deutsch-Jozsa algorithm on continuous variable quantum systems. We develop a general procedure, characterized by tw…
Quantum imaging of spin states in optical lattices
James Douglas, Keith Burnett
We investigate imaging of the spatial spin distribution of atoms in optical lattices using non-resonant light scattering. We demonstrate how scattering spatially correlated light f…
Effect of the Heterogeneity of Metamaterials on Casimir-Lifshitz Interaction
Arash Azari, MirFaez Miri, Ramin Golestanian
The Casimir-Lifshitz interaction between metamaterials is studied using a model that takes into account the structural heterogeneity of the dielectric and magnetic properties of th…
Quantum key distribution system in standard telecommunications fiber using a short wavelength single-photon source
R. J. Collins, P. J. Clarke, V. Fernandez +8
A demonstration of the principles of quantum key distribution is performed using a single-photon source in a proof of concept test-bed over a distance of 2 km in standard telecommu…
General optimality of the Heisenberg limit for quantum metrology
Marcin Zwierz, Carlos A. Perez-Delgado, Pieter Kok
Quantum metrology promises improved sensitivity in parameter estimation over classical procedures. However, there is an extensive debate over the question how the sensitivity scale…
Strongly coupled single quantum dot in a photonic crystal waveguide cavity
F. S. F. Brossard, X. L. Xu, D. A. Williams +4
Cavities embedded in photonic crystal waveguides offer a promising route towards large scale integration of coupled resonators for quantum electrodynamics applications. In this let…