6 papers
Quantum linear solvers for quantum chemistry: prospects of exponential quantum advantage
Peniel Bertrand Tsemo, Kenji Sugisaki, Ishita Bhattacharjee +1
Quantum linear solvers (QLSs) can offer the potential for exponential quantum advantage in solving quantum chemical problems, but its assessment hinges on determining the condition…
Point-group symmetry analysis of many-electron wavefunctions on a quantum computer
Rei Sakuma, Kenji Sugisaki, Shu Kanno +2
A point group is a set of spatial symmetry operations in molecular systems and is an indispensable tool for analyzing molecular orbitals and spectroscopy experiments in chemistry.…
Do quantum linear solvers offer advantage for networks-based system of linear equations?
Disha Shetty, Supriyo Dutta, Palak Chawla +5
In this exploratory numerical study, we assess the suitability of Quantum Linear Solvers(QLSs)toward providing a quantum advantage for Networks-based Linear System Problems (NLSPs)…
Quantum annealing eigensolver as a NISQ era tool for probing strong correlation effects in quantum chemistry
Aashna Anil Zade, Kenji Sugisaki, Matthias Werner +6
The quantum-classical hybrid variational quantum eigensolver (VQE) algorithm is arguably the most popular noisy intermediate-scale quantum (NISQ) era approach to quantum chemistry.…
Trapped ion quantum hardware demonstration of energy calculations using a multireference unitary coupled cluster ansatz: application to the BeH2 insertion problem
Palak Chawla, Disha Shetty, Peniel Bertrand Tsemo +5
In this study, we employ the variational quantum eigensolver algorithm with a multireference unitary coupled cluster ansatz to report the ground state energy of the BeH2 molecule i…
Enhancing the Harrow-Hassidim-Lloyd (HHL) algorithm in systems with large condition numbers
Peniel Bertrand Tsemo, Akshaya Jayashankar, K. Sugisaki +3
Although the Harrow-Hassidim-Lloyd (HHL) algorithm offers an exponential speedup in system size for treating linear equations of the form on quantum computers wh…