Năng lượng điểm không

nhỏ|Heli lỏng vẫn giữ được [[động năng và không bị đóng băng bất kể nhiệt độ ở áp suất tiêu chuẩn do năng lượng điểm không. Khi được làm lạnh dưới điểm lambda, nó thể hiện tính chất siêu lỏng.]]

Năng lượng điểm không (tiếng Anh: zero-point energy (ZPE)) là năng lượng thấp nhất mà một hệ cơ học lượng tử có thể có. Không giống như trong cơ học cổ điển, các hệ lượng tử liên tục dao động ở trạng thái năng lượng thấp nhất như được mô tả bởi nguyên lý bất định Heisenberg. Do đó, ngay cả ở độ không tuyệt đối, các nguyên tử và phân tử vẫn giữ được một số chuyển động dao động.

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Via Calphysics Institute.








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