551 citations · 3.9k across the 72 of their papers we have counts for
9 papers · 2 filters
Better product formulas for quantum phase estimation
Kasra Hejazi, Jay Soni, Modjtaba Shokrian Zini +1
Quantum phase estimation requires simulating the evolution of the Hamiltonian, for which product formulas are attractive due to their smaller qubit cost and ease of implementation.…
A differentiable quantum phase estimation algorithm
Davide Castaldo, Soran Jahangiri, Agostino Migliore +2
The simulation of electronic properties is a pivotal issue in modern electronic structure theory, driving significant efforts over the past decades to develop protocols for computi…
Simulating optically-active spin defects with a quantum computer
Jack S. Baker, Pablo A. M. Casares, Modjtaba Shokrian Zini +5
There is a pressing need for more accurate computational simulations of the opto-electronic properties of defects in materials to aid in the development of quantum sensing platform…
Simulating X-ray absorption spectroscopy of battery materials on a quantum computer
Stepan Fomichev, Kasra Hejazi, Ignacio Loaiza +5
X-ray absorption spectroscopy is a crucial experimental technique for elucidating the mechanisms of structural degradation in battery materials. However, extracting information fro…
Nonlinear Spectroscopy via Generalized Quantum Phase Estimation
Ignacio Loaiza, Danial Motlagh, Kasra Hejazi +3
Response theory has a successful history of connecting experimental observations with theoretical predictions. Of particular interest is the optical response of matter, from which…
Early Fault-Tolerant Quantum Algorithms in Practice: Application to Ground-State Energy Estimation
Oriel Kiss, Utkarsh Azad, Borja Requena +3
We investigate the feasibility of early fault-tolerant quantum algorithms focusing on ground-state energy estimation problems. In particular, we examine the computation of the cumu…
Ground State Preparation via Dynamical Cooling
Danial Motlagh, Modjtaba Shokrian Zini, Juan Miguel Arrazola +1
Quantum algorithms for probing ground-state properties of quantum systems require good initial states. Projection-based methods such as eigenvalue filtering rely on inputs that hav…
Quantum simulation of time-dependent Hamiltonians via commutator-free quasi-Magnus operators
Pablo Antonio Moreno Casares, Modjtaba Shokrian Zini, Juan Miguel Arrazola
Hamiltonian simulation is arguably the most fundamental application of quantum computers. The Magnus operator is a popular method for time-dependent Hamiltonian simulation in compu…
Better bounds for low-energy product formulas
Kasra Hejazi, Modjtaba Shokrian Zini, Juan Miguel Arrazola
Product formulas are one of the main approaches for quantum simulation of the Hamiltonian dynamics of a quantum system. Their implementation cost is computed based on error bounds…