69 citations · 261 across the 33 of their papers we have counts for
36 papers
Anonymous quantum sensing robust against state preparation errors
Hiroto Kasai, Seiichiro Tani, Yasuhiro Tokura +1
Networked quantum sensors have several applications such as the mapping of magnetic fields. When the magnetic fields are biomagnetic ones, i.e., they contain some private informati…
Quantum algorithm for unstructured search of ranked targets
Kota Tani, Shunji Tsuchiya, Seiichiro Tani +1
Grover's quantum algorithm can find a marked item from an unstructured database faster than any classical algorithm, and hence it has been used for several applications such as cry…
Approximate Degrees of Multisymmetric Properties with Application to Quantum Claw Detection
Seiichiro Tani
The claw problem is central in the fields of theoretical computer science as well as cryptography. The optimal quantum query complexity of the problem is known to be $Ω\left(\sqrt{…
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…
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…