Measurements of Quantum Hamiltonians with Locally-Biased Classical Shadows
Sign Up to like & getrecommendations! Published in 2022 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-022-04343-8
Abstract: Obtaining precise estimates of quantum observables is a crucial step of variational quantum algorithms. We consider the problem of estimating expectation values of quantum Hamiltonians, obtained on states prepared on a quantum computer. We propose… read more here.
Keywords: quantum hamiltonians; measurements quantum; biased classical; hamiltonians locally ... See more keywords
Sequential Measurements for Quantum-Enhanced Magnetometry in Spin Chain Probes.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.120503
Abstract: Quantum sensors outperform their classical counterparts in their estimation precision, given the same amount of resources. So far, quantum-enhanced sensitivity has been achieved by exploiting the superposition principle. This enhancement has been obtained for particular… read more here.
Keywords: many body; quantum; sequential measurements; enhanced magnetometry ... See more keywords