Gravity: The biggest open question in fundamental physics
In 1985 a small group of UW nuclear and atomic experimentalists formed the Eöt-Wash collaboration to develop novel high-sensitivity torsion balances to test some of these theoretical scenarios and to search for subtle new phenomena associated with the breakdown of either of the 2 standard models. As our experimental sensitivity increased by orders of magnitudes, theorists proposed new mechanisms that we could test until a small “graveyard” of proposals was populated.
In 2021 this work was awarded the Breakthrough Prize in Fundamental Physics “for precision measurements that test our understanding of gravity, probe the nature of dark energy, and establish limits on couplings on dark matter.” I will review the extraordinary instruments we developed and the results we obtained from testing Einstein’s equivalence principle and the gravitational inverse-square law, and probing for Planck-scale Lorentz violation using a quantum gyroscope with no moving parts.
Speakers:
Eric Adelberger, Blayne Heckel, & Jens Gundlach (2021 Breakthrough Prize in Fundamental Physics Winners), University of Washington
Please submit your questions during the live lecture in the KZread chat box or send by email to fpls@uw.edu
The Frontiers of Physics Lecture Series phys.washington.edu/events/se... brings renowned scientists to the University of Washington to offer free lectures on exciting advances in physics with the goal of fostering an appreciation of science and technology in our community.
For more information on series sponsorship opportunities and the Department of Physics, please contact the Physics Front Office, physrecp@uw.edu or (206-543-3771).
To make a gift in support of this series please visit our giving website www.washington.edu/giving/mak...
University of Washington Department of Physics phys.washington.edu/
College of Arts and Sciences artsci.washington.edu/
Пікірлер: 6
Mashaa Allah great personalities very happy to meet you .🙋🙋🙋🙋🙋🙋🙋
If we keep our view of gravity as a measure of the energy density of the vacuum locally then gravity a) demands a non trivial manifold as the manifold must reflect/possess the qualities it’s parts may express b) should be thought of as density, physical density. This accounts for gravitational lensing. It even of course is consistent in that higher energy photon being closer to having mass is more greatly affected. Gravity is a change in the scaling of the metric. Quantum characteristics of gravity comes from energy and mass being quantized but this does not mean the vacuum itself is. Mass is quantized because the mass unit (the “cancelled out” charge components in quark construction of Protons and neutrons. 2/3+2/3-1/3=1 but those two thirds, one of each polarity didn’t disappear. They became an oscillating charge pair like a photon but trapped within the positive charge envelope of the proton. In a neutron there is one similar apparently stable unit. But then another one on top.
talk starts at 8 Minutes - bo sound in beginning..
Oookayyyy !!!!
Sterile neutrino is the answer.
OK... someone needs to seriously coach this guy on public speaking, OK? It's maddening to listen to someone end every sentence with OK? It's unnecessary, OK? It's condescending to the listeners, OK? And he's a "professor" who taught students in classes, OK? This tic should have been addressed decades ago, OK?