ArticleNature communications2019
Variational consistent histories as a hybrid algorithm for quantum foundations.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- A Variational Quantum Linear Solver Application to Discrete Finite-Element Methods.Entropy (Basel, Switzerland) · 2023Article
- Universal compilation for quantum state tomography.Scientific reports · 2023Article
- Noise-induced barren plateaus in variational quantum algorithms.Nature communications · 2021Article
- Cost function dependent barren plateaus in shallow parametrized quantum circuits.Nature communications · 2021Article
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Authors and funding
5 authors.
Funding
Abstract
Although quantum computers are predicted to have many commercial applications, less attention has been given to their potential for resolving foundational issues in quantum mechanics. Here we focus on quantum computers' utility for the Consistent Histories formalism, which has previously been employed to study quantum cosmology, quantum paradoxes, and the quantum-to-classical transition. We present a variational hybrid quantum-classical algorithm for finding consistent histories, which should revitalize interest in this formalism by allowing classically impossible calculations to be performed. In our algorithm, the quantum computer evaluates the decoherence functional (with exponential speedup in both the number of qubits and the number of times in the history) and a classical optimizer adjusts the history parameters to improve consistency. We implement our algorithm on a cloud quantum computer to find consistent histories for a spin in a magnetic field and on a simulator to observe the emergence of classicality for a chiral molecule.
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Registered trials
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