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Study on the limitations of travel-time inversion applied to sub-basalt imaging
travel-time inversion sub-basalt imaging
2015/1/5
The difficulties of seismic imaging beneath high velocity structures are widely recognised. In this setting, theoretical analysis of synthetic wide-angle seismic reflection data indicate...
Charge conjugation from space-time inversion in QED: discrete and continuous groups
CPT groups space-time inversion Lorentz and Poincar´ e groups
2010/11/29
We show that the CPT groups of QED emerge naturally from the PT and P (or T )subgroups of the Lorentz group. We also find relationships between these discrete groups and continuous groups, like the co...
In Minkowski flat space-time, it is perceived that time inversion is unitary rather than antiunitary,with energy being a time vector changing sign under time inversion. The Dirac
equation, in the cas...