135 citations · 314 across the 7 of their papers we have counts for
4 papers · 1 filter
Qubit-excitation-based adaptive variational quantum eigensolver
Yordan S. Yordanov, V. Armaos, Crispin H. W. Barnes +1
Molecular simulations with the variational quantum eigensolver (VQE) are a promising application for emerging noisy intermediate-scale quantum computers. Constructing accurate mole…
Invariant subspaces of two-qubit quantum gates and their application in the verification of quantum computers
Yordan S. Yordanov, Jacob Chevalier-Drori, Thierry Ferrus +2
We investigate the groups generated by the sets of , and (power-of-SWAP) quantum gate operations acting on qubits. Isomorphisms to standard groups are found…
Efficient quantum circuits for quantum computational chemistry
Yordan S. Yordanov, David R. M. Arvidsson-Shukur, Crispin H. W. Barnes
Molecular quantum simulations with the variational quantum eigensolver (VQE) rely on ansatz states that approximate the molecular ground states. These ansatz states are generally d…
Implementation of a general single-qubit positive operator-valued measure on a circuit-based quantum computer
Yordan S. Yordanov, Crispin H. W. Barnes
We derive a deterministic protocol to implement a general single-qubit POVM on near-term circuit-based quantum computers. The protocol has a modular structure, such that an -ele…