PTER removes Trotter errors in quantum Hamiltonian simulation via quasi-probabilistic reversal of the error dynamics, producing unbiased results with constant overhead.
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First end-to-end demonstration of quantum error correction integrated with quantum phase estimation to compute molecular hydrogen ground-state energy to 0.001(13) hartree accuracy on Quantinuum H2-2 hardware.
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Unbiased Hamiltonian Simulation by Reversing Trotter Error Dynamics
PTER removes Trotter errors in quantum Hamiltonian simulation via quasi-probabilistic reversal of the error dynamics, producing unbiased results with constant overhead.
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Quantum Error-Corrected Computation of Molecular Energies
First end-to-end demonstration of quantum error correction integrated with quantum phase estimation to compute molecular hydrogen ground-state energy to 0.001(13) hartree accuracy on Quantinuum H2-2 hardware.