The Path Integral, Perturbation Theory and Complex Actions

• The cylinder is about 60 cm long and 6 cm
in diameter.
• The inverse square law implies that the
gravitational field inside the cylinder is
exactly zero, apart from end effects.
• The end effect forces are smaller by a factor
of 1/100 than the difference in forces from
the near and far sides of the cylinder, thus to
determine these forces to a precision of
1/100000, the end effect forces need to be
measured to a precision of 1/1000
Tuesday, 2 April, 13