例句與造句

1. The asymptotic state space is presumably the Hilbert space obtained by quotienting BRST exact states out of this Krein space .)
2. Forward and backward polarized radiation can be omitted in the asymptotic states of a quantum field theory ( see Ward Takahashi identity ).
3. This permits us to build a set of asymptotic states which can be used to start a computation of the probability amplitudes for different processes.
4. In sum, no field introduced as part of a BRST gauge fixing procedure will appear in asymptotic states of the gauge-fixed theory.
5. This identification of the \ psi's as asymptotic states is the justification for the \ pm \ epsilon in the denominator of the Lippmann Schwinger equations.
6. It's difficult to find asymptotic state in a sentence. 用asymptotic state造句挺難的
7. We can also suppress states that lie inside the image of " Q B " when defining the asymptotic states of our theory but the reasoning is a bit subtler.
8. These are the four types of " unphysical " quanta which will not appear in the asymptotic states of a perturbative calculation " if " we get our quantization rules right.
9. From a mathematical perspective the auxiliary field is a variety of Goldstone boson, and its use has advantages when identifying the asymptotic states of the theory, and especially when generalizing beyond QED.
10. The BRST global supersymmetry introduced in the mid-1970s was quickly understood to rationalize the introduction of these Faddeev Popov ghosts and their exclusion from " physical " asymptotic states when performing QFT calculations.
11. Virtual particles are also excitations of the underlying fields, but are " temporary " in the sense that they appear in calculations of interactions, but never as asymptotic states or indices to the scattering matrix.
12. The uncertainty principle now allows the interactions of the asymptotic states to occur over a timescale \ hbar / \ Delta E and in particular it is no longer inconceivable that the interactions may turn off outside of this interval.
13. Kerrich and Christensen also performed experiments using a " biased coin ", made from a wooden disk partly coated in lead, to show that it too tended towards a stable asymptotic state with probability of approximately 70 per cent.
14. This means that in relativity, the product of the free real spin-0 field has a " nonzero " vacuum expectation value, because in addition to creating particles which are not annihilated and annihilating particles which are not subsequently created, it also includes a part that creates and annihilates " virtual " particles whose existence enters into interaction calculations-but never as scattering matrix indices or asymptotic states.
15. The expansion of the Dyson series in terms of Feynman diagrams will include vertices that couple " physical " particles ( those that can appear in asymptotic states of the free Hamiltonian ) to " unphysical " particles ( states of fields that live outside the kernel of " s B " or inside the image of " s B " ) and vertices that couple " unphysical " particles to one another.
16. However, its ( anti-) commutation law relative to " c "  i . e ., its quantization prescription, which ignores the spin-statistics theorem by giving Fermi Dirac statistics to a spin-0 particle will be given by the requirement that the inner product on our Fock space of asymptotic states be singular along directions corresponding to the raising and lowering operators of some combination of non-BRST-closed and BRST-exact fields.