Can MOND type hypotheses be tested in a free fall laboratory environment?

被引:9
|
作者
Das, Saurya [1 ]
Patitsas, S. N. [1 ]
机构
[1] Univ Lethbridge, Dept Phys & Astron, Lethbridge, AB T1K 3M4, Canada
来源
PHYSICAL REVIEW D | 2013年 / 87卷 / 10期
基金
加拿大自然科学与工程研究理事会;
关键词
NEWTONIAN DYNAMICS; TORSION BALANCE;
D O I
10.1103/PhysRevD.87.107101
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The extremely small accelerations of objects required for the onset of modified Newtonian dynamics, or modified Newtonian dynamics (MOND), makes testing the hypothesis in conventional terrestrial laboratories virtually impossible. This is due to the large background acceleration of Earth, which is transmitted to the acceleration of test objects within an apparatus. We show, however, that it may be possible to test MOND-type hypotheses with experiments using a conventional apparatus capable of tracking very small accelerations of its components but performed in locally inertial frames such as artificial satellites and other freely falling laboratories. For example, experiments involving an optical interferometer or a torsion balance in these laboratories would show nonlinear dynamics and displacement amplitudes larger than expected. These experiments may also be able to test potential violations of the strong equivalence principle by MOND and to distinguish between its two possible interpretations (modified inertia and modified gravity).
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