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Updated: Jun 10, 2025
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
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Variational benchmarks for quantum many-body problems
Dian Wu1,2, Riccardo Rossi1,3, Filippo Vicentini2,4,5
1Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Science (New York, N.Y.)
|October 17, 2024
Summary
We introduce the V-score, a new metric for variational accuracy in many-body quantum systems. This score helps assess progress in computational physics and chemistry, guiding the development of quantum computing algorithms.
Area of Science:
- Computational Physics
- Quantum Chemistry
- Quantum Computing
Background:
- Assessing progress in computational methods for many-body ground-state problems is crucial.
- Current numerical approaches sometimes exhibit limited accuracy.
Purpose of the Study:
- Introduce a novel metric, the V-score, to quantify variational accuracy.
- Provide a curated dataset of variational calculations for benchmarking.
Main Methods:
- The V-score is derived from the variational energy and its variance.
- An extensive dataset of many-body quantum system calculations was curated.
Main Results:
- Identified limitations in the accuracy of current state-of-the-art numerical methods.
- Highlighted potential for quantum computing to offer improved accuracy.
Conclusions:
- The V-score serves as a metric to track progress in quantum variational methods.
- It is particularly useful for assessing the path towards quantum advantage in intractable problems.
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