sf.utils.vacuum_state

vacuum_state(basis='fock', fock_dim=5, hbar=2.0)

Returns the vacuum state

Parameters

• basis (str) – If ‘fock’, calculates the initial state in the Fock basis. If ‘gaussian’, returns the vector of means and the covariance matrix.

• fock_dim (int) – the size of the truncated Fock basis if using the Fock basis representation

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

Returns

the vacuum state

Return type

array

code/api/strawberryfields.utils.vacuum_state

 

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