201 citations · 721 across the 42 of their papers we have counts for
42 papers
Multicast quantum network coding as optimal symmetric universal cloning over a quantum network
Go Kato, Mio Murao, Masaki Owari
We study the problem of perfectly multicasting symmetric universal clones of unknown quantum states over quantum networks with free classical communication. We construct a protocol…
Lie-Algebraic Bounds on Quantum Control Time via the Baker-Campbell-Hausdorff Formula
Go Kato, Masaki Owari, Koji Maruyama
The time required to implement a desired unitary operation is a central issue in quantum control, especially for many-body systems with limited control access. While controllabilit…
On the hardness of conversion from entangled proof into separable one
Seiseki Akibue, Go Kato, Seiichiro Tani
A quantum channel whose image approximates the set of separable states is called a disentangler, which plays a prominent role in the investigation of variants of the computational…
Security framework for quantum key distribution with imperfect sources
Guillermo Currás-Lorenzo, Margarida Pereira, Go Kato +2
Imperfect bit-and-basis encoders compromise the security of quantum key distribution (QKD) systems via modulation flaws, side channels and inter-pulse correlations, which invalidat…
Probabilistic state synthesis based on optimal convex approximation
Seiseki Akibue, Go Kato, Seiichiro Tani
When preparing a pure state with a quantum circuit, there is an unavoidable approximation error due to the compilation error in fault-tolerant implementation. A recently proposed a…
Probabilistic unitary synthesis with optimal accuracy
Seiseki Akibue, Go Kato, Seiichiro Tani
The purpose of unitary synthesis is to find a gate sequence that optimally approximates a target unitary transformation. A new synthesis approach, called probabilistic synthesis, h…