complex conjugate
Noun
Meaning
either of two complex numbers whose real parts are identical and whose imaginary parts differ only in sign
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In the time-dependent equation, complex conjugate waves move in opposite directions.
When is negative (casus irreducibilis), the second cube root should be regarded as the complex conjugate of the first one.
Since the product of the wavefunction (in the ket) and its complex conjugate (in the bra) is always symmetric under inversion and its inverse, : it follows that the expectation value changes sign under inversion.
If the pump beams E 1 and E 2 are plane (counterpropagating) waves, then: : that is, the generated beam amplitude is the complex conjugate of the signal beam amplitude.
Impedance matching is achieved when the source impedance is the complex conjugate of the load impedance.
It is also seen in the picture that z and its complex conjugate have the same absolute value.