201 citations · 721 across the 42 of their papers we have counts for
6 papers · 1 filter
Perfect discrimination of non-orthogonal quantum states with posterior classical partial information
Seiseki Akibue, Go Kato, Naoki Marumo
The indistinguishability of non-orthogonal pure states lies at the heart of quantum information processing. Although the indistinguishability reflects the impossibility of measurin…
Linear programs for entanglement and key distribution in the quantum internet
Stefan Bäuml, Koji Azuma, Go Kato +1
Quantum networks will allow to implement communication tasks beyond the reach of their classical counterparts. A pressing and necessary issue for the design of quantum network prot…
Do black holes store negative entropy?
Koji Azuma, Sathyawageeswar Subramanian, Go Kato
The Bekenstein-Hawking equation states that black holes should have entropy proportional to their areas to make black hole physics compatible with the second law of thermodynamics.…
Quantum key distribution with setting-choice-independently correlated light sources
Akihiro Mizutani, Go Kato, Koji Azuma +6
Despite the enormous theoretical and experimental progress made so far in quantum key distribution (QKD), the security of most existing QKD implementations is not rigorously establ…
Algebra and Hilbert space structures induced by quantum probes
Go Kato, Masaki Owari, Koji Maruyama
In the general setting of quantum controls, it is unrealistic to control all of the degrees of freedom of a quantum system. We consider a scenario where our direct access is restri…
Bipartite discrimination of independently prepared quantum states as a counterexample to a parallel repetition conjecture
Seiseki Akibue, Go Kato
For distinguishing quantum states sampled from a fixed ensemble, the gap in bipartite and single-party distinguishability can be interpreted as a nonlocality of the ensemble. In th…