Low energy excitations in solid 4He
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The atoms in solid helium are weakly bound and have small mass so that the overlap of their wave functions (zero point motion) is large, making it a quantum solid close to the...
固态氦中的原子呈弱束缚状态且质量极小，其波函数交叠（由零点运动所致）程度较高，使其成为一种趋近于……的量子固体
