https://davidmerwin.pieces.cloud/?p=fa1e428665

create_two_LineQubits_cirq.md

Python Snippet

Preview:

import pytest
import cirq


def test_constructor_flexibility():
    # Create two LineQubits
    a, b = cirq.LineQubit.range(2)
    
    # Test the constructor flexibility
    with pytest.raises(TypeError, match='cirq.PAULI_STRING_LIKE'):
        _ = cirq.PauliString(cirq.CZ(a, b))
        
    with pytest.raises(TypeError, match='cirq.PAULI_STRING_LIKE'):
        _ = cirq.PauliString('test')
        
    with pytest.raises(TypeError, match='S is not a Pauli'):
        _ = cirq.PauliString(qubit_pauli_map={a: cirq.S})
        
    with pytest.raises(TypeError, match="cirq.PAULI_STRING_LIKE"):
        _ = cirq.PauliString(cirq.Z(a) + cirq.Z(b))
        
    assert cirq.PauliString(cirq.X(a)) == cirq.PauliString(qubit_pauli_map={a: cirq.X})
    
    assert cirq.PauliString([cirq.X(a)]) == cirq.PauliString(qubit_pauli_map={a: cirq.X})
    
    assert cirq.PauliString([[[cirq.X(a)]]]) == cirq.PauliString(qubit_pauli_map={a: cirq.X})
    
    assert cirq.PauliString([[[cirq.I(a)]]]) == cirq.PauliString()
    
    assert cirq.PauliString(1, 2, 3, cirq.X(a), cirq.Y(a)) == cirq.PauliString(
        qubit_pauli_map={a: cirq.Z}, coefficient=6j
    )
    
    assert cirq.PauliString(cirq.X(a), cirq.X(a)) == cirq.PauliString()
    
    assert cirq.PauliString(cirq.X(a), cirq.X(b)) == cirq.PauliString(
        qubit_pauli_map={a: cirq.X, b: cirq.X}
    )
    
    assert cirq.PauliString(0) == cirq.PauliString(coefficient=0)
    
    assert cirq.PauliString(1, 2, 3, {a: cirq.X}, cirq.Y(a)) == cirq.PauliString(
        qubit_pauli_map={a: cirq.Z}, coefficient=6j
    )

Associated Context
Type	Code Snippet ( .py )
Associated Tags	No Tags Associated
Description	'No Description Provided'
Related Links	http://quantumai.google/cirq https://github.com/davidmerwin
Related People	David Merwin, CIRQ
Sensitive Information	No Sensitive Information Detected
Shareable Link	https://davidmerwin.pieces.cloud/?p=fa1e428665