The discussion centers on the relationship between decoherence and wave function collapse in quantum mechanics. Participants explore whether decoherence is the mechanism that transitions quantum systems to classical behavior, and the implications of this for the concept of wave function collapse. The conversation includes theoretical considerations and interpretations of quantum mechanics ...
But after reading Decoherence and Quantum Darwinism, a book published in March 2025 by the physicist Wojciech Zurek, I’m excited by the possibility of an answer that does away with all those fanciful ...
Phys.org on MSN: Do decoherence, gravity, dark matter and dark energy all originate from quantum corrections?
Do decoherence, gravity, dark matter and dark energy all originate from quantum corrections?
This discussion explores the implications of decoherence on quantum systems, particularly in the context of the Wigner's Friend thought experiment. Participants examine whether decoherence eliminates quantum coherence and entanglement, focusing on theoretical and experimental perspectives regarding macroscopic quantum effects. Some participants argue that decoherence does not eliminate quantum ...
Decoherence is mentioned as a process that leads to the "splitting" of worlds, with one participant seeking clarification on its role and nature. There is acknowledgment that the literature on decoherence is extensive, and one participant recommends consulting specific articles for a deeper understanding.
I have a couple of questions about decoherence vs. observer wave function collapse and multi-worlds interpretation. Am I right that Zeh's decoherence theory does not involve an observer, and esp not a conscious observer? Also, am I right that his theory does not involve or align with the...
No. Decoherence is a process that turns coherent wave functions (superpositions of basis states) into incoherent mixtures (ensembles of basis states). This is inconsistent with the unitary evolution of wave functions. Decoherence is what is obtained from a unitary process for a large system by considering its effect on a small subsystem with a tiny state space (tracing over the degrees of ...