Class Coherent

• Defined in File BlackbirdProgram.h

Inheritance Relationships

Base Type

• public blackbird::Operation (Class Operation)

Class Documentation

class blackbird::Coherent : public blackbird::Operation

Represents the coherent state. For more details, see the Strawberry Fields convention page.

Displacement parameter \(\alpha\) is accessible via:

• \(|\alpha|\): Coherent->f1

• \(\text{arg}(\alpha)\): Coherent->f2

Public Functions

inline Coherent(floatvec displacement_phase, intvec m)

Constructor for the coherent class to automatically initialize a coherent state acting on mode m

Parameters

• displacement_phase – vector<double> of length 2 containing the displacement magnitude and phase

• m – mode state is initialized on

inline Coherent(complexvec alpha, intvec m)

Constructor for the coherent class to automatically initialize a coherent state acting on mode m

Parameters

• alpha – vector<complex<double>> of length 1 containing the displacement as a complex value

• m – mode state is initialized on

inline Coherent(intvec alpha, intvec m)

Constructor for the coherent class that throws an error if integer parameters are provided.

Parameters

• alpha – vector<int> parmeters

• m – mode state is initialized on

Throws

invalid_argument – Coherent must have real arguments