86 citations · 86 across the 2 of their papers we have counts for
4 papers · 1 filter
An Entanglement Filter
Ryo Okamoto, Jeremy L. O'Brien, Holger F. Hofmann +3
The ability to filter quantum states is a key capability in quantum information science and technology, in which one-qubit filters, or polarizers, have found wide application. Filt…
Beating the Standard Quantum Limit with Four Entangled Photons
Tomohisa Nagata, Ryo Okamoto, Jeremy L. O'Brien +2
Precision measurements are important across all fields of science. In particular, optical phase measurements can be used to measure distance, position, displacement, acceleration a…
Characterization of a noisy quantum process by complementary classical operations
Holger F. Hofmann, Ryo Okamoto, Shigeki Takeuchi
One of the challenges in quantum information is the demonstration of quantum coherence in the operations of experimental devices. While full quantum process tomography can do the j…
Analysis of an experimental quantum logic gate by complementary classical operations
Holger F. Hofmann, Ryo Okamoto, Shigeki Takeuchi
Quantum logic gates can perform calculations much more efficiently than their classical counterparts. However, the level of control needed to obtain a reliable quantum operation is…