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This study resolves critical thermodynamic inconsistencies in objective collapse models by employing pseudo-spectral simulations to handle strongly non-Gaussian regimes where previous perturbative methods failed. The findings demonstrate that systems governed by the Diósi-Penrose mechanism settle into a stable, non-equilibrium state rather than thermalizing, effectively addressing unphysical energy increase issues inherent in standard formulations. These results establish new scaling laws for dissipation and confirm the thermodynamic validity of collapse theories under conditions previously considered computationally intractable.
Quantum Friction Model Overcomes Heating Issues in Collapse Theories
Previously intractable dynamics in objective collapse models are now open to detailed analysis. A new pseudo-spectral simulation approach circumvents the limitations of perturbative methods, allowing for examination of strongly non-Gaussian regimes where dissipation would otherwise overwhelm calculations. This reveals that systems subject to the Diósi-Penrose mechanism settle into a non-equilibrium steady-state, rather than simply thermalising.
Pedro B. Melo and colleagues have investigated the thermodynamic properties of objective collapse models, addressing a key issue of unphysical energy increase inherent in standard formulations. They rigorously demonstrate the thermodynamic consistency of the Diósi-Penrose model, and its extension to the CSL model, even when phase-space dynamics become strongly non-Gaussian. Their new pseudo-spectral simulation approach bypasses limitations of perturbative methods, revealing that the system settles into a non-equilibrium steady-state rather than thermalising, with non-Gaussianity scaling with dissipation. Evaluating Wigner entropy production confirms the model's thermodynamic validity and highlights the need for exact numerical methods to accurately capture subtle information-theoretic…
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