Last Updated：2025/11/28
(quantum mechanics) A complex number which is the coefficient of a component of a quantum state and whose product with its own complex conjugate gives the probability that the state will collapse to that component (when measured). (Note: the quantum state being thought of as a linear combination of its components.)
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probability amplitude
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Source Word
probability amplitude
Noun
(quantum
mechanics)
A
complex
number
which
is
the
coefficient
of
a
component
of
a
quantum
state
and
whose
product
with
its
own
complex
conjugate
gives
the
probability
that
the
state
will
collapse
to
that
component
(when
measured).
(Note:
the
quantum
state
being
thought
of
as
a
linear
combination
of
its
components.)
Japanese Meaning
確率振幅: 量子力学において、量子状態の各成分の係数として表される複素数であり、その複素共役との積が、測定時にその成分に崩壊する確率を示す。
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(quantum
mechanics)
A
complex
number
which
is
the
coefficient
of
a
component
of
a
quantum
state
and
whose
product
with
its
own
complex
conjugate
gives
the
probability
that
the
state
will
collapse
to
that
component
(when
measured).
(Note:
the
quantum
state
being
thought
of
as
a
linear
combination
of
its
components.)
（ plural ）
