Nowadays, quantum cloud services are full of excitement. Everyone is happy and hyped for them. But reality hits hard, and decoherence doom these platforms. -cloud catastrophe- uses ‘ibmq_manila’ to prepare multiple 5-qubit 1D graph states and performs X measurements in the first four qubits to teleport qubit 1 to qubit 5.

This simple procedure should teleport the input state to the last qubit, but this is not the case. Instead, our system’s Hilbert space gets entangled with the rest of the universe, causing error and despair: a cloud catastrophe. The errors of five different runs, each with 1024 shots, are stored and plotted. These plots are used to generate a set of vivid images that represent the separation of two distinct worlds: ours and quantum wonderland. Afterward, decoherence kills hype, and quantum clouds lose their charm. Uncertainty rules the world of clouds. Hope is all we got, and in quantum error correction, we must trust.