scholarly journals Constraints on non-Newtonian gravity and light elementary particles from measurements of the Casimir force by means of a dynamic atomic force microscope

2012 ◽  
Vol 86 (6) ◽  
Author(s):  
G. L. Klimchitskaya ◽  
U. Mohideen ◽  
V. M. Mostepanenko
Keyword(s):  
Atomic Force Microscope ◽  
Casimir Force ◽  
Elementary Particles ◽  
Newtonian Gravity ◽  
Atomic Force

CASIMIR FORCE EXPERIMENTS IN AIR: TWO BIRDS WITH ONE STONE

2010 ◽  
Vol 25 (11) ◽  
pp. 2231-2239 ◽  
Author(s):  
S. DE MAN ◽  
K. HEECK ◽  
K. SMITH ◽  
R. J. WIJNGAARDEN ◽  
D. IANNUZZI
Keyword(s):  
Atomic Force Microscope ◽  
High Precision ◽  
Electrostatic Potential ◽  
Casimir Force ◽  
Hydrodynamic Force ◽  
Force Sensor ◽  
Force Measurements ◽  
Atomic Force ◽  
Potential Measure ◽  
Interacting Surfaces

We present a short overview of the recent efforts of our group in the design of high precision Casimir force setups. We first describe our Atomic Force Microscope based technique that allows one to simultaneously and continuously calibrate the instrument, compensate for a residual electrostatic potential, measure the Casimir force, and, in the presence of a fluid in the gap between the interacting surfaces, measure the hydrodynamic force. Then we briefly discuss a new force sensor that adapts well to Casimir force measurements in critical environments.

scholarly journals Gradient of the Casimir force between Au surfaces of a sphere and a plate measured using an atomic force microscope in a frequency-shift technique

2012 ◽  
Vol 85 (16) ◽  
Author(s):  
C.-C. Chang ◽  
A. A. Banishev ◽  
R. Castillo-Garza ◽  
G. L. Klimchitskaya ◽  
V. M. Mostepanenko ◽  
...  
Keyword(s):  
Frequency Shift ◽  
Atomic Force Microscope ◽  
Casimir Force ◽  
Atomic Force ◽  
Shift Technique

scholarly journals Experimental procedures for precision measurements of the Casimir force with an atomic force microscope

2008 ◽  
Vol 41 (16) ◽  
pp. 164022 ◽  
Author(s):  
Hsiang-Chih Chiu ◽  
Chia-Cheng Chang ◽  
R Castillo-Garza ◽  
F Chen ◽  
U Mohideen
Keyword(s):  
Atomic Force Microscope ◽  
Casimir Force ◽  
Precision Measurements ◽  
Atomic Force

CONSTRAINTS ON YUKAWA-TYPE HYPOTHETICAL INTERACTIONS FROM RECENT CASIMIR FORCE MEASUREMENTS

2002 ◽  
Vol 17 (29) ◽  
pp. 4143-4152 ◽  
Author(s):  
G. L. KLIMCHITSKAYA ◽  
U. MOHIDEEN
Keyword(s):  
Atomic Force Microscope ◽  
Long Range ◽  
Casimir Force ◽  
Casimir Effect ◽  
Torsion Pendulum ◽  
Force Measurements ◽  
Atomic Force ◽  
Long Range Interactions ◽  
Conventional Methods

Constraints on the Yukawa-type long-range interactions following from the Casimir effect are considered. The constraints obtained from the recent Casimir force measurements by means of a torsion pendulum and an atomic force microscope are collected and compared. New constraints are obtained from the measurement of the lateral Casimir force. The conclusion is made that the Casimir effect has an advantage over the conventional methods in obtaining stronger constraints on hypothetical interactions.

MEASUREMENTS OF THE NORMAL AND SHAPE DEPENDENT CASIMIR FORCES USING AN ATOMIC FORCE MICROSCOPE

2002 ◽  
Vol 17 (06n07) ◽  
pp. 711-721 ◽  
Author(s):  
F. CHEN ◽  
B. W. HARRIS ◽  
A. ROY ◽  
U. MOHIDEEN
Keyword(s):  
Atomic Force Microscope ◽  
Casimir Force ◽  
Experimental Results ◽  
Precision Measurements ◽  
Force Measurements ◽  
Casimir Forces ◽  
Atomic Force ◽  
History Of

The precision instrumental developments and the modern unification theories using compact dimensions have motivated a resurgence in the field of Casimir force measurements. Here, after a brief discussion of the history of Casimir force measurements, the experimental results of Casimir force measurements using an Atomic Force Microscope will be presented. Precision measurements of the normal Casimir force, demonstration of the shape dependent Casimir force and the lateral Casimir force will be presented.

scholarly journals DO THE PRECISE MEASUREMENTS OF THE CASIMIR FORCE AGREE WITH THE EXPECTATIONS?

2000 ◽  
Vol 15 (15) ◽  
pp. 1013-1021 ◽  
Author(s):  
V. B. SVETOVOY ◽  
M. V. LOKHANIN
Keyword(s):  
Atomic Force Microscope ◽  
Casimir Force ◽  
Crystalline Materials ◽  
Material Constants ◽  
Atomic Force ◽  
Upper Limit

An upper limit on the Casimir force is found using the dielectric functions of perfect crystalline materials which depend only on well-defined material constants. The force measured with the atomic force microscope is larger than this limit at small separations between bodies and the discrepancy is significant. The simplest modification of the experiment is proposed allowing one to make its results more reliable and answer the question if the discrepancy has any relation with the existence of a new force.

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