9 papers · 1 filter
Subspace Selected Variational Quantum Configuration Interaction with a Partial Walsh Series
Koray AydoÄan, Anna R. Spak, Kade Head-Marsden +1
Estimating the ground-state energy of a quantum system is one of the most promising applications for quantum algorithms. Here we propose a variational quantum eigensolver (VQE) \em…
Understanding the effects of competing spin-pair dephasing pathways in molecular spins
Timothy J. Krogmeier, James Bradley, Anthony W. Schlimgen +1
Molecular spins offer promise in emerging quantum technologies such as quantum sensing and computing. At low temperatures, nuclear spin-spin interactions affect electron spin coher…
Open-source implementation of the anti-Hermitian contracted Schrödinger equation for electronic ground and excited states
Daniel Gibney, Anthony W Schlimgen, Jan-Niklas Boyn
Efficient simulation of strongly correlated electrons has become a routine tool in molecular electronic structure theory due to recent advances in approximate configuration interac…
A perturbative non-Markovian treatment to low-temperature spin decoherence
Timothy J. Krogmeier, Anthony W. Schlimgen, Kade Head-Marsden
Molecular spins are promising candidates for quantum information science, leveraging coherent electronic spin states for quantum sensing and computation. However, the practical app…
Preserving fermionic statistics for single-particle approximations in microscopic quantum master equations
Mikayla Z. Fahrenbruch, Anthony W. Schlimgen, Kade Head-Marsden
Microscopic master equations have gained traction for the dissipative treatment of molecular spin and solid-state systems for quantum technologies. Single particle approximations a…
Quantum Simulation of Two-Level -Symmetric Systems Using Hermitian Hamiltonians
Maryam Abbasi, Koray Aydogan, Anthony W. Schlimgen +1
Parity-time ()-symmetric Hamiltonians exhibit non-unitary dynamical evolution while maintaining real spectra, and offer unique approaches to quantum sensing and entanglement ge…