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Quantum phase estimation of multiple eigenvalues for small-scale (noisy) experiments
T. E. O'Brien, B. Tarasinski, B. M. Terhal
Quantum phase estimation is the workhorse behind any quantum algorithm and a promising method for determining ground state energies of strongly correlated quantum systems. Low-cost…
Low-cost error mitigation by symmetry verification
X. Bonet-Monroig, R. Sagastizabal, M. Singh +1
We investigate the performance of error mitigation via measurement of conserved symmetries on near-term devices. We present two protocols to measure conserved symmetries during the…
Neural network decoder for topological color codes with circuit level noise
P. Baireuther, M. D. Caio, B. Criger +2
A quantum computer needs the assistance of a classical algorithm to detect and identify errors that affect encoded quantum information. At this interface of classical and quantum c…