phase coherence उदाहरण वाक्य

B _ \ phi is the phase coherence characteristic field, which is roughly the magnetic field required to destroy phase coherence, B _ \ text { SO } is the spin-orbit characteristic field which can be considered a measure of the strength of the spin-orbit interaction and B _ e in the elastic characteristic field.
The loss of phase coherence in the transverse plane is called transverse or " T " 2 relaxation . " T " 1 is thus associated with the enthalpy of the spin system, or the number of nuclei with parallel versus anti-parallel spin . " T " 2 on the other hand is associated with the entropy of the system, or the number of nuclei in phase.
The characteristic fields are better understood in terms of their corresponding characteristic lengths which are deduced from { B _ i = \ hbar / 4 e l _ i ^ 2 } . l _ \ phi can then be understood as the distance traveled by an electron before it loses phase coherence, l _ \ text { SO } can be thought of as the distance traveled before the spin of the electron undergoes the effect of the spin-orbit interaction, and finally l _ e is the mean free path.