315 citations · 1.1k across the 21 of their papers we have counts for
5 papers · 2 filters
Robust entanglement-based magnetic field sensor beyond the standard quantum limit
Tohru Tanaka, Paul Knott, Yuichiro Matsuzaki +4
Recently, there have been significant developments in entanglement-based quantum metrology. However, entanglement is fragile against experimental imperfections, and quantum sensing…
Multi-mode Entanglement is Detrimental to Lossy Optical Quantum Metrology
P. A. Knott, T. J. Proctor, Kae Nemoto +2
In optical interferometry multi-mode entanglement is often assumed to be the driving force behind quantum enhanced measurements. Recent work has shown this assumption to be false:…
Attaining sub-classical metrology in lossy systems with entangled coherent states
P. A. Knott, W. J. Munro, J. A. Dunningham
Quantum mechanics allows entanglement enhanced measurements to be performed, but loss remains an obstacle in constructing realistic quantum metrology schemes. However, recent work…
Precise Phase Measurements using an Entangled Coherent State
P. A. Knott, J. A. Dunningham
Quantum entanglement offers the possibility of making measurements beyond the classical limit, however some issues still need to be overcome before it can be applied in realistic l…
Will boson-sampling ever disprove the Extended Church-Turing thesis?
Peter P. Rohde, Keith R. Motes, Paul A. Knott +1
Boson-sampling is a highly simplified, but non-universal, approach to implementing optical quantum computation. It was shown by Aaronson and Arkhipov that this protocol cannot be e…