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6 papers · 1 filter
Symmetry Dilemmas in Quantum Computing for Chemistry: A Comprehensive Analysis
Ilias Magoulas, Muhan Zhang, Francesco A. Evangelista
Symmetry adaptation, universality, and gate efficiency are central but often competing requirements in quantum algorithms for electronic structure and many-body physics. For exampl…
Coherent transient exciton transport in disordered polaritonic wires
Gustavo J. R. Aroeira, Kyle T. Kairys, Raphael F. Ribeiro
Excitation energy transport can be significantly enhanced by strong light-matter interactions. In the present work, we explore intriguing features of coherent transient exciton wav…
Theoretical Analysis of Exciton Wave Packet Dynamics in Polaritonic Wires
Gustavo J. R. Aroeira, Kyle Kairys, Raphael F. Ribeiro
We present a comprehensive study of exciton wave packet evolution in disordered lossless polaritonic wires. Our simulations reveal signatures of ballistic, diffusive, and subdiffus…
AGP-based unitary coupled cluster theory for quantum computers
Armin Khamoshi, Guo P. Chen, Francesco A. Evangelista +1
Electronic structure methods typically benefit from symmetry breaking and restoration, specially in the strong correlation regime. The same goes for Ansätze on a quantum computer.…
Simulating Many-Body Systems with a Projective Quantum Eigensolver
Nicholas H. Stair, Francesco A. Evangelista
We present a new hybrid quantum-classical algorithm for optimizing unitary coupled-cluster (UCC) wave functions deemed the projective quantum eigensolver (PQE), amenable to near-te…
Correlating AGP on a quantum computer
Armin Khamoshi, Francesco A. Evangelista, Gustavo E. Scuseria
For variational algorithms on the near term quantum computing hardware, it is highly desirable to use very accurate ansatze with low implementation cost. Recent studies have shown…