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Kleine Scheidegg
Klein bottle
noun
Klein paradox
noun
(quantum
mechanics)
A
surprising
result
of
applying
the
Dirac
equation
to
the
problem
of
electron
scattering
from
a
potential
barrier.
In
non-relativistic
quantum
mechanics,
electron
tunnelling
into
a
barrier
is
observed,
with
exponential
damping.
However,
if
the
potential
is
of
the
order
of
the
electron
mass,
V∼mc²,
the
barrier
is
nearly
transparent;
moreover,
as
the
potential
approaches
infinity,
the
reflection
diminishes
and
the
electron
is
always
transmitted.
Klein quadric
noun
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