M. Bordag et al., ON THE STRENGTHENING OF RESTRICTIONS ON HYPOTHETICAL YUKAWA-TYPE FORCES WITH EXTREMELY SMALL RANGE OF ACTION, Physics letters. A, 187(1), 1994, pp. 35-39
Restrictions on Yukawa-type hypothetical forces with extremely small r
ange of action are obtained from London force measurements and from sp
ectroscopy of exotic atoms. A new experiment for measuring the attract
ive force in atomic force microscopy is shown to promise the strengthe
ning of the restrictions obtained up to date by 200 times within the r
ange 1 < lambda < 100 angstrom.