کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1161202 | 1490436 | 2013 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The primacy of geometry The primacy of geometry](/preview/png/1161202.png)
We argue that in current spacetime physics there can be no dynamical derivation of primitive geometrical notions such as length. We illustrate our argument by focusing on two case studies: the special theory of relativity and some approaches to quantum gravity, and we argue that in these cases, some geometrical notions are assumed rather than derived. Our argument suggests a new reading of Einstein's views on the status of geometry vs. dynamics.
► We present a no-go argument against attempts to “reduce“ geometry to dynamics in quantum gravity.
► We show why these attempts can be regarded at most as consistency proofs rather than derivations.
► We demonstrate our argument in loop quantum gravity and the causal set approach.
► As historical background we discuss the rarely cited correspondence between Einstein and Swann.
Journal: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics - Volume 44, Issue 3, August 2013, Pages 357–364