Quantum information and algorithms for correlated quantum matter

K Head-Marsden, J Flick, CJ Ciccarino… - Chemical …, 2020 - ACS Publications
Discoveries in quantum materials, which are characterized by the strongly quantum-
mechanical nature of electrons and atoms, have revealed exotic properties that arise from …

Quantum simulations of materials on near-term quantum computers

H Ma, M Govoni, G Galli - npj Computational Materials, 2020 - nature.com
Quantum computers hold promise to enable efficient simulations of the properties of
molecules and materials; however, at present they only permit ab initio calculations of a few …

Quantum solver of contracted eigenvalue equations for scalable molecular simulations on quantum computing devices

SE Smart, DA Mazziotti - Physical Review Letters, 2021 - APS
The accurate computation of ground and excited states of many-fermion quantum systems is
one of the most consequential, contemporary challenges in the physical and computational …

Quantum-classical hybrid algorithm using an error-mitigating -representability condition to compute the Mott metal-insulator transition

SE Smart, DA Mazziotti - Physical Review A, 2019 - APS
Quantum algorithms for molecular electronic structure have been developed with lower
computational scaling than their classical counterparts, but emerging quantum hardware is …

Exciton-condensate-like amplification of energy transport in light harvesting

AO Schouten, LAM Sager-Smith, DA Mazziotti - PRX Energy, 2023 - APS
Bose-Einstein condensation of excitons, in which excitons condense into a single coherent
quantum state, known as an exciton condensate, enables frictionless energy transfer, but …

Preparation of an exciton condensate of photons on a 53-qubit quantum computer

LAM Sager, SE Smart, DA Mazziotti - Physical Review Research, 2020 - APS
Quantum computation promises an exponential speedup of certain classes of classical
calculations through the preparation and manipulation of entangled quantum states. So far …

Quantum sensing using multiqubit quantum systems and the Pauli polytope

I Avdic, LAM Sager-Smith, I Ghosh, OC Wedig… - Physical Review …, 2023 - APS
Quantum sensing has highly practical potential applications in fields ranging from
fundamental physics and quantum communication to biophysics and bioengineering …

Open quantum system violates generalized Pauli constraints on quantum device

I Avdic, LAM Sager-Smith, DA Mazziotti - Communications Physics, 2023 - nature.com
The Pauli exclusion principle governs the fundamental structure and function of fermionic
systems from molecules to materials. Nonetheless, when such a fermionic system is in a …

Quantum simulation of quantum phase transitions using the convex geometry of reduced density matrices

S Warren, LAM Sager-Smith, DA Mazziotti - Physical Review A, 2022 - APS
Transitions of many-particle quantum systems between distinct phases at absolute-zero
temperature, known as quantum phase transitions, require an exacting treatment of particle …

Toward a resolution of the static correlation problem in density functional theory from semidefinite programming

D Gibney, JN Boyn, DA Mazziotti - The Journal of Physical …, 2020 - ACS Publications
Kohn–Sham density functional theory (DFT) has long struggled with the accurate description
of strongly correlated and open shell systems, and improvements have been minor even in …