Class S2gate

• Defined in File BlackbirdProgram.h

Inheritance Relationships

Base Type

• public blackbird::Operation (Class Operation)

Class Documentation

class blackbird::S2gate : public blackbird::Operation

Represents the two mode squeezing gate. For more details, see the Strawberry Fields convention page.

Squeezing parameter \(z\) accessible via:

• \(r=|z|\): S2gate->f1

• \(\phi=\text{arg}(z)\): S2gate->f2

Public Functions

inline S2gate(complexvec r_phi, intvec m)

Constructor that throws an error if complex parameters are provided.

Parameters

• r_phi – vector<complex<double>> parameters

• m – vector<int> containing both modes the gate acts on

Throws

invalid_argument – Operation must have real arguments

inline S2gate(intvec r_phi, intvec m)

Constructor that throws an error if integer parameters are provided.

Parameters

• r_phi – vector<int> parameters

• m – vector<int> containing both modes the gate acts on

Throws

invalid_argument – Operation must have real arguments

inline S2gate(floatvec r_phi, intvec m)

Constructor to initialize a BSgate acting on modes m

Parameters

• r_phi – vector<double> of length 2 containing the squeezing magnitude and phase

• m – vector<int> containing both modes the gate acts on