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Abstract
This paper introduces a computational complexity framework for quantum experiments, called Quantum Algorithmic Measurements (QUALMs). QUALMs combine black-box quantum algorithms with interactive protocols to study experimental problems in quantum many-body physics. The authors demonstrate a provable exponential speedup for coherent QUALMs compared to incoherent ones in distinguishing time-independent from time-dependent Hamiltonians and determining system dynamics' symmetry classes.
Publisher
Nature Communications
Published On
Feb 16, 2022
Authors
Dorit Aharonov, Jordan Cotler, Xiao-Liang Qi
Tags
Quantum Algorithmic Measurements
computational complexity
quantum experiments
Hamiltonians
quantum many-body physics
system dynamics
exponential speedup
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