10 citations · 18 across the 5 of their papers we have counts for
7 papers · 1 filter
Electronic Structure in a Fixed Basis is QMA-complete
Bryan O'Gorman, Sandy Irani, James Whitfield +1
Finding the ground state energy of electrons subject to an external electric field is a fundamental problem in computational chemistry. We prove that this electronic-structure prob…
Custom fermionic codes for quantum simulation
Riley W. Chien, James D. Whitfield
Simulating a fermionic system on a quantum computer requires encoding the anti-commuting fermionic variables into the operators acting on the qubit Hilbert space. The most familiar…
A comparison of three ways to measure time-dependent densities with quantum simulators
Jun Yang, James Brown, James Daniel Whitfield
Quantum algorithms are touted as a way around some classically intractable problems such as the simulation of quantum mechanics. At the end of all quantum algorithms is a quantum m…
Analysis of Superfast Encoding Performance for Electronic Structure Simulations
Riley W. Chien, Sha Xue, Tarini S. Hardikar +2
In our recent work, we have examined various fermion to qubit mappings in the context of quantum simulation including the original Bravyi-Kitaev Superfast encoding (OSE) as well as…
Solver for the electronic V-representation problem of time-dependent density functional theory
James Brown, Jun Yang, James D Whitfield
One route to numerically propagating quantum systems is time-dependent density functional theory (TDDFT). The application of TDDFT to a particular system's time evolution is predic…
Superfast encodings for fermionic quantum simulation
Kanav Setia, Sergey Bravyi, Antonio Mezzacapo +1
Simulation of fermionic many-body systems on a quantum computer requires a suitable encoding of fermionic degrees of freedom into qubits. Here we revisit the Superfast Encoding int…