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Updated: Feb 3, 2026

Absolute Quantum Yield Measurement of Powder Samples
Published on: May 12, 2012
Quantum Symmetry from Enhanced Sampling Methods
J Runeson1, M Nava1, M Parrinello1
1Department of Chemistry and Applied Biosciences, ETH Zürich, and Facoltà di Informatica, Istituto di Scienze Computazionali, Università della Svizzera Italiana, Via G. Buffi 13, 6900 Lugano, Switzerland.
Abstract:
We address the problem of the minus sign sampling for two-electron systems using the path integral approach. We show that this problem can be reexpressed as one of computing free energy differences and sampling the tails of statistical distributions. Using metadynamics, a realistic problem like that of two electrons confined in a quantum dot can be solved. We believe that this is a strategy that can possibly be extended to more complex systems.
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