qml.devices.default_gaussian.thermal_state¶

thermal_state(nbar, hbar=2.0)[source]¶

Returns a thermal state.

Parameters

• nbar (float) – the mean photon number

• hbar (float) – (default 2) the value of $\hbar$ in the commutation relation $[\x,\p]=i\hbar$

Returns

the thermal state

Return type

array