最終更新日：2022/12/07
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(physics, cosmology, astronomy, astrophysics, quantum mechanics, relativity theory) A spacetime singularity with an event horizon on the order of a Planck length (~ 10⁻³⁵ metres), and a mass on the order of a Planck mass (~ 20 micrograms), whose only possible decay route is emitting a single photon of Hawking radiation of that rest mass as energy, but thus disallowed by quantum physics transition prohibition, which becomes stable and everlasting if it does not absorb anything.
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元となった辞書の項目
Planck relic
noun
(physics,
cosmology,
astronomy,
astrophysics,
quantum
mechanics,
relativity
theory)
A
spacetime
singularity
with
an
event
horizon
on
the
order
of
a
Planck
length
(~
10⁻³⁵
metres),
and
a
mass
on
the
order
of
a
Planck
mass
(~
20
micrograms),
whose
only
possible
decay
route
is
emitting
a
single
photon
of
Hawking
radiation
of
that
rest
mass
as
energy,
but
thus
disallowed
by
quantum
physics
transition
prohibition,
which
becomes
stable
and
everlasting
if
it
does
not
absorb
anything.
意味（1）
(physics,
cosmology,
astronomy,
astrophysics,
quantum
mechanics,
relativity
theory)
A
spacetime
singularity
with
an
event
horizon
on
the
order
of
a
Planck
length
(~
10⁻³⁵
metres),
and
a
mass
on
the
order
of
a
Planck
mass
(~
20
micrograms),
whose
only
possible
decay
route
is
emitting
a
single
photon
of
Hawking
radiation
of
that
rest
mass
as
energy,
but
thus
disallowed
by
quantum
physics
transition
prohibition,
which
becomes
stable
and
everlasting
if
it
does
not
absorb
anything.
