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--- documentation:language_reference:objects:wavefunction:properties:complex [2016/09/25 13:53] – created Maurits W. Haverkort
+++ documentation:language_reference:objects:wavefunction:properties:complex [2025/11/20 04:20] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== Complex ======
+###
+boolean, read only
+###
+###
+For a wavefunction //psi//, //psi.Complex// returns a boolean (true or false) stating if the wavefunction contains complex numbers or not.
+###
+===== Example =====
+###
+We can define the functions
+$$
+|\psi\rangle = \left(\frac{1}{\sqrt{4}} a^{\dagger}_0 a^{\dagger}_1 + \frac{1}{\sqrt{4}} a^{\dagger}_0 a^{\dagger}_2 + (1+I)\frac{1}{\sqrt{4}} a^{\dagger}_1 a^{\dagger}_2 \right)|0\rangle,
+$$
+and
+$$
+|\psi\rangle = \left(\frac{1}{\sqrt{2}} a^{\dagger}_0 a^{\dagger}_1 + \frac{1}{\sqrt{2}} a^{\dagger}_0 a^{\dagger}_2 \right)|0\rangle.
+$$
+###
+For the former //psi.Complex()// is //true// for the later //psi.Complex()// is //false//
+==== Input ====
+<code Quanty Example.Quanty>
+NF=3
+NB=0
+psi = NewWavefunction(NF, NB, {{"110",sqrt(1/4)},{"101",sqrt(1/4)},{"011",(1+I)*sqrt(1/4)}})
+print(psi.Complex)
+psi = NewWavefunction(NF, NB, {{"110",sqrt(1/2)},{"101",sqrt(1/2)}})
+print(psi.Complex)
+</code>
+==== Result ====
+<file Quanty_Output>
+true
+false
+</file>
+===== Available properties =====
+{{indexmenu>.#1}}