Measuring gravity at the Quantum level with neutrons

This seems fascinating.

Yousuf Khan

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Probing the laws of gravity: A gravity resonance method
"It is hard to measure the quantum physical effects of gravity at tiny
length scales. “Atoms should better not be used for such experiments,
because their behaviour is strongly influenced by short-range
electromagnetic forces – such as the Van-der-Waals-force or the Casimir
force”, professor Hartmut Abele form the TU Vienna explains. “But with
our ultra-cold neturons, which are uncharged and hardly polarizable, we
can do high-precision measurements at short distances.” Professor Abele
carried out the experiments together with his assistants, Tobias Jenke
and Dr. Hartmut Lemmel, and with Dr. Peter Geltenbort from the Institute
Laue-Langevin in Grenoble. "
http://www.physorg.com/news/2011-04-...ce-method.html

On Apr 18, 8:15*pm, Yousuf Khan wrote:
This seems fascinating.

* * * * Yousuf Khan

***

Probing the laws of gravity: A gravity resonance method
"It is hard to measure the quantum physical effects of gravity at tiny
length scales. “Atoms should better not be used for such experiments,
because their behaviour is strongly influenced by short-range
electromagnetic forces – such as the Van-der-Waals-force or the Casimir
force”, professor Hartmut Abele form the TU Vienna explains. “But with
our ultra-cold neturons, which are uncharged and hardly polarizable, we
can do high-precision measurements at short distances.” Professor Abele
carried out the experiments together with his assistants, Tobias Jenke
and Dr. Hartmut Lemmel, and with Dr. Peter Geltenbort from the Institute
Laue-Langevin in Grenoble. "http://www.physorg.com/news/2011-04-probing-laws-gravity-resonance-me...

http://www.bbc.co.uk/news/science-environment-13097370

On 18/04/2011 3:00 PM, Chris.B wrote:
On Apr 18, 8:15 pm, Yousuf wrote:
This seems fascinating.

Yousuf Khan

***

Probing the laws of gravity: A gravity resonance method
"It is hard to measure the quantum physical effects of gravity at tiny
length scales. “Atoms should better not be used for such experiments,
because their behaviour is strongly influenced by short-range
electromagnetic forces – such as the Van-der-Waals-force or the Casimir
force”, professor Hartmut Abele form the TU Vienna explains. “But with
our ultra-cold neturons, which are uncharged and hardly polarizable, we
can do high-precision measurements at short distances.” Professor Abele
carried out the experiments together with his assistants, Tobias Jenke
and Dr. Hartmut Lemmel, and with Dr. Peter Geltenbort from the Institute
Laue-Langevin in Grenoble. "http://www.physorg.com/news/2011-04-probing-laws-gravity-resonance-me...

http://www.bbc.co.uk/news/science-environment-13097370

Yup, these guys are attempting to use this as some kind of way to test
for Supersymmetry and Superstring theory. What would be more relevant at
these scales would be testing for MOND effects. These tiny particles
should be easily affected by the tiny accelerations that MOND predicts.

Yousuf Khan