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Quantum fluid reveals hidden states that can be switched with a magnetic field
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关键摘要
Bose-Einstein condensates (BECs) are often described as a "fifth state of matter": a quantum state in which many particles lose their individual identities and behave as one collective object.…
- For more than 60 years, researchers have sought to create such condens…
- This has been difficult to realize in controllable semiconductor devic…
摘要引擎：抽取
正文提要
Bose-Einstein condensates (BECs) are often described as a "fifth state of matter": a quantum state in which many particles lose their individual identities and behave as one collective object. For more than 60 years, researchers have sought to create such condensates from excitons—electron-hole pairs—as a solid-state route to macroscopic quantum coherence, which is useful for quantum technologies. This has been difficult to realize in controllable semiconductor devices because optically generated excitons have very short lifetimes of around a billionth of a second, and BECs are normally attained with ultracold gases in a vacuum.
来源：https://phys.org/news/2026-08-quantum-fluid-reveals-hidden-states.html