44 citations · 121 across the 17 of their papers we have counts for
8 papers · 1 filter
Selected Stabilizer Subspaces for Compact Many-Body Wave Functions
Maria-Andreea Filip, George H. Booth
Selected configuration interaction (SCI) obtains accurate many-body solutions by variationally diagonalising the Hamiltonian in a sparse, iteratively selected set of configurations…
Efficient measurement schemes for the Monte Carlo projective quantum eigensolver
Divye Baid, Maria-Andreea Filip
The Monte Carlo Projective Quantum Eigensolver (MC-PQE) was recently introduced as an alternative to hybrid algorithms like the variational quantum eigensolver (VQE). By using a qu…
Shallow Electronic State Preparation for Quantum Chemistry with Quantum Monte Carlo Pre-Selection
Eline Welling, Lila Cadi-Tazi, Alex J. W. Thom +1
Quantum computers hold great promise for molecular simulation, but noise remains a fundamental obstacle. We introduce a Quantum Monte Carlo (QMC) pre-screening procedure that const…
Excited state preparation on a quantum computer through adiabatic light-matter coupling
Hugh G. A. Burton, Maria-Andreea Filip
Quantum computing has the potential to transform simulations of quantum many-body problems at the heart of electronic structure theory. Efficient quantum algorithms to compute the…
Beyond asymptotic reasoning: the practicalities of a quantum ground state projector based on the wall-Chebyshev expansion
Maria-Andreea Filip, Nathan Fitzpatrick
We consider a quantum algorithm for ground-state preparation based on a Chebyshev series approximation to the wall function. In a classical setting, this approach is appealing as i…
Fighting noise with noise: a stochastic projective quantum eigensolver
Maria-Andreea Filip
In the current noisy intermediate scale quantum era of quantum computation, available hardware is severely limited by both qubit count and noise levels, precluding the application…
Variational Phase Estimation with Variational Fast Forwarding
Maria-Andreea Filip, David Muñoz Ramo, Nathan Fitzpatrick
Subspace diagonalisation methods have appeared recently as promising means to access the ground state and some excited states of molecular Hamiltonians by classically diagonalising…
Reducing Unitary Coupled Cluster Circuit Depth by Classical Stochastic Amplitude Pre-Screening
Maria-Andreea Filip, Nathan Fitzpatrick, David Muñoz Ramo +1
Unitary Coupled Cluster (UCC) approaches are an appealing route to utilising quantum hardware to perform quantum chemistry calculations, as quantum computers can in principle perfo…