On Participatory Realism

Christopher A. Fuchs To appear in “Information & Interaction: Eddington, Wheeler, and the Limits of Knowledge”, edited by Ian T. Durham and Dean Rickles In the Philosophical Investigations, Ludwig Wittgenstein wrote, ” ‘I’ is not the name of a person, nor ‘here’ of a place, …. But they are connected with names. … [And] it is characteristic of physics not… Read more →

Weekly Papers on Quantum Foundations (17)

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. Reflections on the renormalization procedure for gauge theories. (arXiv:1604.06257v1 [hep-th]) hep-th updates on arXiv.org on 2016-4-22 2:48am GMT Authors: Gerard t Hooft Various pieces of insight were needed to formulate the rules for working with… Read more →

Violation of the Born Rule: Implications for Macroscopic Fields.

ABSTRACT. It is shown that violation of the Born Rule leads to a breakdown of the correspondence between the quantum electromagnetic field and its classical counterpart. Specifically, the relationship of the quantum coherent state to the  classical electromagnetic field turns out to imply that if the Born Rule were violated, this could result in apparent deviations from the energy conservation… Read more →

Weekly Papers on Quantum Foundations (16)

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. Dark energy from non-unitarity in quantum theory. (arXiv:1604.04183v1 [gr-qc]) gr-qc updates on arXiv.org on 2016-4-16 8:28am GMT Authors: Thibaut Josset, Alejandro Perez, Daniel Sudarsky We consider a scheme whereby it is possible to reconcile semi-classical Einstein’s equation… Read more →

Non-Relativistic Limit of the Dirac Equation

Muhammad Adeel Ajaib (California Polytechnic State University) We show that the first order form of the Schrodinger equation proposed in [1] can be obtained from the Dirac equation in the non-relativistic limit. We also show that the Pauli Hamiltonian is obtained from this equation by requiring local gauge invariance. In addition, we study the problem of a spin up particle… Read more →

Weekly Papers on Quantum Foundations (15)

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. Remarks on the tensor product structure of no-signaling theories. (arXiv:1604.01949v1 [quant-ph]) quant-ph updates on arXiv.org on 2016-4-09 8:14am GMT Authors: Tomasz I. Tylec, Marek Kuś In the quantum logic framework we show that the no-signaling box… Read more →

Event ontology in quantum mechanics and downward causation

Rodolfo Gambini (Instituto de Fsica, Facultad de Ciencias) and Jorge Pullin (Louisiana State University) We show that several interpretations of quantum mechanics admit an ontology of objects and events. This ontology reduces the breach between mind and matter. When humans act, their actions do not appear explainable in mechanical terms but through mental activity: motives, desires or needs that propel them to action. These… Read more →

Weekly Papers on Quantum Foundations (14)

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. Quantum Galileo’s experiments and mass estimation in a gravitational field. (arXiv:1603.09559v1 [gr-qc]) gr-qc updates on arXiv.org on 2016-4-02 8:26am GMT Authors: Luigi Seveso, Valerio Peri, Matteo G. A. Paris We address the problem of estimating the mass… Read more →