DICE2010 — Space-Time-Matter
Current issues in quantum mechanics and beyondSep 13,2010 - Sep 17,2010
Castello Pasquini, Castiglioncello, Toscana, Italy
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Highlights
Following DICE2002, DICE2004, DICE2006, and DICE2008 this interdisciplinary workshop addresses researchers in the fields of fundamental interactions, cosmology, general relativity, and quantum theory:
-The pillars of modern physics, quantum mechanics and general relativity, coexist very successfully, having in their respective domains impressive observational support. However, black hole entropy puzzle, missing unification of all known forces, and conceptual problems in applying quantum theory to the universe are stumbling blocks on the way to a deeper understanding.-Attempts to quantize gravity continue to stimulate studies of classical and quantum dynamics and of the statistical properties of "timeless" reparametrization-invariant systems. A central problem remains to determine the observables that are consistent with the constraints. "The difficulties with quantum gravity" have also led to radically new proposals considering spacetime and/or gravity as emergent phenomena, much like hydrodynamics is seen to arise from atomic physics. Even quantum mechanics may reflect a deterministic dynamics beneath, when suitably coarse-grained to the scales where it is observed to work so well.-Classical behavior in complex quantum systems, attributed to decoherence, has recently been studied in macroscopic and mesoscopic systems, the motivation being largely the quest for quantum information processing. However, relevant decohering degrees of freedom in microscopic and general relativistic systems are much less understood. - The related measurement problem and, with it, wave function collapse or objective reduction continue to present unresolved issues.-The study of these topics may include an analysis of the kind of information that exists in such systems with many degrees of freedom and typically long-range interactions and of the basic conditions under which it can be extracted. Corresponding measures of complexity have been elaborated and should play a role here.-
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Event Profile
- Theme: Current issues in quantum mechanics and beyond
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