遵循的规范
发表于 2025-3-25 04:03:36
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Tortuous
发表于 2025-3-25 07:52:33
Linear Algebra Review, Unitary and Orthogonal Groups,A significant background in linear algebra will be assumed in later chapters, and we’ll need a range of specific facts from that subject.
暗语
发表于 2025-3-25 14:55:18
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充气球
发表于 2025-3-25 18:34:43
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synovial-joint
发表于 2025-3-25 21:50:41
Rotations and the Spin , Particle in a Magnetic Field,The existence of a non-trivial double cover .(3) of the three-dimensional rotation group may seem to be a somewhat obscure mathematical fact. Remarkably though, the existence of fundamental spin . particles shows that it is .(3) rather than .(3) that is the symmetry group corresponding to rotations of fundamental quantum systems.
使混合
发表于 2025-3-26 02:28:47
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变色龙
发表于 2025-3-26 06:02:40
Tensor Products, Entanglement, and Addition of Spin,If one has two independent quantum systems, with state spaces . and ., the combined quantum system has a description that exploits the mathematical notion of a “tensor product,” with the combined state space the tensor product ..
Adulate
发表于 2025-3-26 11:23:41
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名义上
发表于 2025-3-26 16:39:26
Position and the Free Particle,Our discussion of the free particle has so far been largely in terms of one observable, the momentum operator. The free particle Hamiltonian is given in terms of this operator (.) and we have seen in section . that solutions of the Schrödinger equation behave very simply in momentum space.
整体
发表于 2025-3-26 20:29:30
,The Heisenberg group and the Schrödinger Representation,In our discussion of the free particle, we used just the actions of the groups . of spatial translations and the group . of time translations, finding corresponding observables, the self-adjoint momentum, and Hamiltonian operators . and ..