This is a list of this week’s papers on quantum foundations published in various journals or uploaded to preprint servers such as arxiv.org and PhilSci Archive.
on 2016-4-09 8:14am GMT
In the quantum logic framework we show that the no-signaling box model is a particular type of tensor product of the logics of single boxes. Such notion of tensor product is too strong to apply in the category of logics of quantum mechanical systems. Consequently, we show that the no-signaling box models cannot be considered as generalizations of quantum mechanical models.
on 2016-4-09 8:14am GMT
Measurement is of central interest in quantum mechanics as it provides the link between the quantum word and the word of everyday experience. One of the features of the latter is its robust, objective character, contrasting delicate nature of quantum systems. Here we analyze in a model-independent way a measurement process and give an affirmative answer to the question in the title, provided the systems involved are large-dimensional and we wait long enough. As typicality measure we use the celebrated Gaussian Uniatry Ensemble of random matrices and the objectivization is characterized by the recently introduced, so called Spectrum Broadcast Structures. We show that they are typically approached during the measurement as $\sim 1/t^3$.
on 2016-4-09 7:23am GMT
Belot, Gordon (2016) Undermined. [Preprint]
on 2016-4-07 2:00pm GMT
Author(s): Miguel A. Porras, Isabel Gonzalo, and Alfredo Luis
We show that quantum Zeno dynamics can be mimicked by the isolated evolution of an unobserved system in an effective potential. Monitoring frequently whether a particle remains in a region of space leads to the same wave-packet dynamics as placing the region on top of a potential barrier and letting…
[Phys. Rev. A 93, 040101(R)] Published Thu Apr 07, 2016
on 2016-4-05 4:18pm GMT
Oldofredi, Andrea and Lazarovici, Dustin and Deckert, Dirk-André and Esfeld, Michael (2016) From the universe to subsystems: Why quantum mechanics appears more stochastic than classical mechanics. [Preprint]
on 2016-4-05 2:00pm GMT
Author(s): D. Kienzler, C. Flühmann, V. Negnevitsky, H.-Y. Lo, M. Marinelli, D. Nadlinger, and J. P. Home
A trapped ion is produced in a superposition of motional wave packets, which are shown to interfere despite being separated by 240 nanometers.
[Phys. Rev. Lett. 116, 140402] Published Tue Apr 05, 2016
on 2016-4-03 10:50pm GMT
Callaway, H.G. (2015) Fundamental Physics, Partial Models and Time’s Arrow. [Preprint]
on 2016-4-03 10:42pm GMT
Norton, Joshua (2015) Loop quantum ontology: spin-networks and spacetime. [Preprint]