1 code implementation • 5 Feb 2021 • Andrew Murphy, Jacob Epstein, Gregory Quiroz, Kevin Schultz, Lina Tewala, Kyle McElroy, Colin Trout, Brian Tien-Street, Joan A. Hoffmann, B. D. Clader, Junling Long, David P. Pappas, Timothy M. Sweeney
We present and validate a novel method for noise injection of arbitrary spectra in quantum circuits that can be applied to any system capable of executing arbitrary single qubit rotations, including cloud-based quantum processors.
no code implementations • 1 Feb 2021 • Kyle S. McKay, Dustin A. Hite, Philip D. Kent, Shlomi Kotler, Dietrich Leibfried, Daniel H. Slichter, Andrew C. Wilson, David P. Pappas
We demonstrate the use of a single trapped ion as a sensor to probe electric-field noise from interchangeable test surfaces.
2 code implementations • 10 Aug 2020 • Oinam Romesh Meitei, Bryan T. Gard, George S. Barron, David P. Pappas, Sophia E. Economou, Edwin Barnes, Nicholas J. Mayhall
In this work, we propose an alternative algorithm (which we refer to as ctrl-VQE) where the quantum circuit used for state preparation is removed entirely and replaced by a quantum control routine which variationally shapes a pulse to drive the initial Hartree-Fock state to the full CI target state.
Quantum Physics Strongly Correlated Electrons Chemical Physics