LATENT REFERENCES / TAG2
Bose–Einstein Condensate
Original title: ボースアインシュタイン凝縮
This reference note belongs to Tag2 in Latent References, an archive curated by Keigo Yoshida. Its archive region is Physics. The note preserves its source text and links so that readers can trace the material behind the 3D map.
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A state in which a particle system obeying Bose–Einstein statistics falls below a certain temperature and all particles enter a single lowest-energy state. Despite being macroscopic, the system displays quantum-mechanical effects and behavior, producing unusual phenomena such as the superfluidity of liquid helium near absolute zero.
Fermions include electrons, protons, and neutrons, with half-integer spin values such as 1/2. Bosons include photons and mesons, with integer spins such as 0 and 1. An even number of half-integer-spin particles can also combine to form a boson.
#physics
ボースアインシュタイン統計に従う粒子系が、ある温度を下回り、すべての粒子が一つの最低エネルギーになった状態。 巨視的な系にもかかわらず、量子力学的な効果や振る舞いが見られ、絶対零度付近の液体ヘリウムが示す超流動のような特異な現象が生じる。
フェルミ粒子には電子、陽子、中性子などがあり、スピンは1/2など半整数の値をとる。 ボース粒子は光子、中間子などで、スピンは0、1など整数になる。 スピンが半整数の粒子も、偶数個集まりボース粒子を形づくる。
#physics
Source updated 2024-08-05 · Snapshot 2026-10-08
Source links and calculated neighbors
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