50 citations
- Keio UniversityJP10 papers
- Indian Institute of Technology KharagpurIN6 papers
- Academy of Scientific and Innovative ResearchIN3 papers
- Homi Bhabha National InstituteIN3 papers
- Indian Association for the Cultivation of ScienceIN3 papers
- Indian Institute of Science Education and Research PuneIN3 papers
- Jadavpur UniversityIN3 papers
- Mitsubishi Chemical (Japan)JP3 papers
- Centre for Interdisciplinary Research and EducationIN2 papers
- Indian Institute of Science BangaloreIN2 papers
- National Institute of Science Education and ResearchIN2 papers
- Ramakrishna Mission Vivekananda Educational and Research InstituteIN2 papers
15 papers · 1 filter
Tensor-based phase difference estimation on time series analysis
Shu Kanno, Kenji Sugisaki, Rei Sakuma +3
We propose a phase-difference estimation algorithm based on the tensor-network circuit compression, leveraging time-evolution data to pursue scalability and higher accuracy on a qu…
Quantum phase estimation based filtering: performance analysis and application to low-energy spectral calculation
Rei Sakuma, Kaito Wada, Shu Kanno +5
Filtering is an important technique in quantum computing used for isolating or enhancing some specific states of quantum many-body systems. In this paper, we analyze the performanc…
Robust phase estimation of the ground-state energy without controlled time evolution on a quantum device
Hiroki Kuji, Yuta Shingu, Tetsuro Nikuni +3
Estimating the ground-state energy of Hamiltonians in quantum systems is an important task. In this work, we demonstrate that the ground-state energy can be accurately estimated wi…
Hamiltonian simulation-based quantum-selected configuration interaction for large-scale electronic structure calculations with a quantum computer
Kenji Sugisaki, Shu Kanno, Toshinari Itoko +2
Quantum-selected configuration interaction (QSCI) is an approach for quantum chemical calculations using current quantum computers. In conventional QSCI, Slater determinants used f…
Does the full configuration interaction method based on quantum phase estimation with Trotter decomposition satisfy the size consistency condition?
Kenji Sugisaki
Electronic structure calculations of atoms and molecules are considered to be a promising application for quantum computers. Two key algorithms, the quantum phase estimation (QPE)…
Entanglement-assisted phase estimation algorithm for calculating dynamical response functions
Rei Sakuma, Shu Kanno, Kenji Sugisaki +2
Dynamical response functions are fundamental quantities to describe the excited-state properties in quantum many-body systems. Quantum algorithms have been proposed to evaluate the…