12 papers
Optimizing Entanglement Manipulation via Algebraic-Geometric Decompositions and Semidefinite Programming Hierarchies
Seiseki Akibue, Jisho Miyazaki, Hiroyuki Osaka
In the study of distributed quantum information processing, it is a fundamental problem to optimize local operations in the implementation of non-local quantum operations assisted…
Measurement Geometry for Quantum Random Access Codes: Beyond Nayak Bound and Toward Optimality
Seiseki Akibue, Rudy Raymond, Suguru Tamaki +1
Quantum random access codes (QRACs) ask how well N classical bits can be encoded into M qubits while allowing any single bit to be recovered. Although the Nayak bound remains the s…
Localization of joint quantum measurements on by entangled resources with Schmidt number at most
Seiseki Akibue, Jisho Miyazaki
Localizable measurements are joint quantum measurements that can be implemented using only non-adaptive local operations and shared entanglement. We provide a protocol-independent…
Circuit Optimization for Universality Transformation
Yasuaki Nakayama, Yuki Takeuchi, Seiseki Akibue
It is known that a computationally universal gate set can be transformed to a strictly universal one using one maximally imaginary state an…
Multi-qubit controlled gate with optimal T-count
Soichiro Yamazaki, Seiseki Akibue
Controlled gates are key components in various quantum algorithms. Improving on the prior work of Gosset et al., we show that, for an allowed error , $3\log_2(1/\varep…
Uniqueness of imaginarity-assisted transformation from computationally universal to strictly universal quantum computation
Yasuaki Nakayama, Yuki Takeuchi, Seiseki Akibue
The computational universality with an elementary gate set can be transformed to the strict universality by using a maximally imaginary state and some non-…