3 papers
quant-ph2026
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…
physics.chem-ph2025
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…
physics.atom-ph2024
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…