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Fully Algebraic and Self-consistent Effective Dynamics in a Static Quantum Embedding
P. V. Sriluckshmy, Max Nusspickel, Edoardo Fertitta +1
Quantum embedding approaches involve the self-consistent optimization of a local fragment of a strongly correlated system, entangled with the wider environment. The `energy-weighte…
Four-component Full Configuration Interaction Quantum Monte Carlo for Relativistic Correlated Electron Problems
Robert J. Anderson, George H. Booth
An adaptation of the full configuration interaction quantum Monte Carlo (FCIQMC) method is presented, for correlated electron problems containing heavy elements and the presence of…
Equation of state of atomic solid hydrogen by stochastic many-body wave function methods
Sam Azadi, George H. Booth, Thomas D. Kühne
We report a numerical study of the equation of state of crystalline body-centered-cubic (BCC) hydrogen, tackled with a variety of complementary many-body wave function methods. The…
Automatic Post-selection by Ancillae Thermalisation
Lewis Wright, Fergus Barratt, James Dborin +2
Tasks such as classification of data and determining the groundstate of a Hamiltonian cannot be carried out through purely unitary quantum evolution. Instead, the inherent non-unit…
A Bayesian Inference Framework for Compression and Prediction of Quantum States
Yannic Rath, Aldo Glielmo, George H. Booth
The recently introduced Gaussian Process State (GPS) provides a highly flexible, compact and physically insightful representation of quantum many-body states based on ideas from th…
Efficient excitations and spectra within a perturbative renormalization approach
Oliver J. Backhouse, George H. Booth
We present a self-consistent approach for computing the correlated quasiparticle spectrum of charged excitations in iterative computational time. This is based o…