Last Updated：2025/11/23
Sentence
Quizzes for review
Wigner's friend recorded the outcome of the measurement inside the sealed lab, leaving Wigner to treat both the particle and his friend as a superposed system until he opened the door.
See correct answer
Wigner's friend recorded the outcome of the measurement inside the sealed lab, leaving Wigner to treat both the particle and his friend as a superposed system until he opened the door.
音声機能が動作しない場合はこちらをご確認ください
Related words
Wigner's friend
Proper noun
(physics,
philosophy)
The
hypothetical
observer
in
a
thought
experiment
in
which
Wigner,
absent
when
his
friend
observes
the
state
of
a
particle
(in
some
versions,
Schrödinger's
cat)
as
it
collapses
from
quantum
superposition,
concludes
that
both
the
particle
and
his
friend
remain
in
quantum
superposition
until
Wigner
himself
learns
the
result
of
the
observation.
Japanese Meaning
（物理学・哲学の文脈）ウィグナーの友人とは、ウィグナーが不在の間に彼の友人が粒子（またはシュレディンガーの猫）の状態を観測するという思考実験における仮想の観測者であり、ウィグナーが観測結果を知らない限り、観測された対象（粒子や友人）が量子重ね合わせ状態にあると解釈される状況を示す概念です。
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
