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Effective information bounds in modified quantum mechanics

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submitted on 2024-08-06, 05:19 and posted on 2024-08-06, 05:20 authored by Sarah Aghababaei, Hooman Moradpour, Salman Sajad Wani, Francesco Marino, Naveed Ahmad Shah, Mir Faizal

A common feature of collapse models and an expected signature of the quantization of gravity at energies well below the Planck scale is the deviation from ordinary quantum-mechanical behavior. Here, we analyze the general consequences of such modifications from the point of view of quantum information theory and we anticipate applications to different quantum systems. We show that quantum systems undergo corrections to the quantum speed limit which, in turn, imply the modification of the Heisenberg limit for parameter estimation. Our results hold for a wide class of scenarios beyond ordinary quantum mechanics. For some nonlocal models inspired by quantum gravity, the bounds are found to oscillate in time, an effect that could be tested in future high-precision quantum experiments.

Other Information

Published in: The European Physical Journal C
License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: https://dx.doi.org/10.1140/epjc/s10052-024-12749-y

Funding

The Scientific and Technological Research Council of Türkiye (BİDEB 2232-A).

History

Language

  • English

Publisher

Springer Nature

Publication Year

  • 2024

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Hamad Bin Khalifa University
  • College of Science and Engineering - HBKU