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Visualizing noise 

...using quantum entanglement. Since qubits are highly sensitive to external disturbances (thermal vibrations, electromagnetic interference etc), maintaining pure entanglement is extremely challenging. Even though modern techniques and improved hardware are helping to reduce noise, today's quantum computers still experience errors.

This experiment is using one of the simplest quantum circuits called Bell State, transpiled to an IBM Eagle QPU. Based on two qubits, the system sets the first qubit in a superposition (H) then applies a gate (CX) between the first and second qubits for entanglement, so both will collapse to the same value (resulting in -- or ++) upon each measurement.

System noise disrupts the perfect entanglement between the two qubits, leading to a loss of coherence (resulting in +- or -+), which is visualized in the sequence.

Fig 1: Visualization (javascript)
Fig 2: Circuit diagram (qiskit)

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