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A Parameter Setting Heuristic for the Quantum Alternating Operator Ansatz
James Sud, Stuart Hadfield, Eleanor Rieffel +2
Parameterized quantum circuits are widely studied approaches for tackling optimization problems. A prominent example is the Quantum Alternating Operator Ansatz (QAOA), an approach…
A "thoughtful" Local Friendliness no-go theorem: a prospective experiment with new assumptions to suit
Howard M. Wiseman, Eric G. Cavalcanti, Eleanor G. Rieffel
A recent paper by two of us and co-workers, based on an extended Wigner's friend scenario, demonstrated that certain empirical correlations predicted by quantum theory (QT) violate…
Towards solving the Fermi-Hubbard model via tailored quantum annealers
Ryan Levy, Zoe Gonzalez Izquierdo, Zhihui Wang +8
The Fermi-Hubbard model (FHM) on a two dimensional square lattice has long been an important testbed and target for simulating fermionic Hamiltonians on quantum hardware. We presen…
Advantage of pausing: parameter setting for quantum annealers
Zoe Gonzalez Izquierdo, Shon Grabbe, Husni Idris +3
Prior work showed the efficacy of pausing midanneal: such a pause improved the probability of success by orders of magnitude in a class of native problem instances and improved the…
Logical shadow tomography: Efficient estimation of error-mitigated observables
Hong-Ye Hu, Ryan LaRose, Yi-Zhuang You +2
We introduce a technique to estimate error-mitigated expectation values on noisy quantum computers. Our technique performs shadow tomography on a logical state to produce a memory-…