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. TylecMarek Kuś

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.

Do objective results typically appear in quantum measurements?. (arXiv:1604.02011v1 [quant-ph])

quant-ph updates on arXiv.org

on 2016-4-09 8:14am GMT

Authors: J. K. KorbiczE. A. AguilarP. ĆwiklińskiP. Horodecki

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 $\sim 1/t^3$.

Undermined

PhilSci-Archive: No conditions. Results ordered -Date Deposited.

on 2016-4-09 7:23am GMT

Belot, Gordon (2016) Undermined. [Preprint]

Potential barrier mimicking frequent location measurements in quantum Zeno dynamics

PRA: Fundamental concepts

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

From the universe to subsystems: Why quantum mechanics appears more stochastic than classical mechanics

PhilSci-Archive: No conditions. Results ordered -Date Deposited.

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]

Observation of Quantum Interference between Separated Mechanical Oscillator Wave Packets

PRL: General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

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

Fundamental Physics, Partial Models and Time’s Arrow

PhilSci-Archive: No conditions. Results ordered -Date Deposited.

on 2016-4-03 10:50pm GMT

Callaway, H.G. (2015) Fundamental Physics, Partial Models and Time’s Arrow. [Preprint]

Loop quantum ontology: spin-networks and spacetime

PhilSci-Archive: No conditions. Results ordered -Date Deposited.

on 2016-4-03 10:42pm GMT

Norton, Joshua (2015) Loop quantum ontology: spin-networks and spacetime. [Preprint]

 

Article written by

editor