Dr. Spiropolou said, “We make insecurity an ally and embrace”
Quantum computers need thousands upon thousands of qubits to work and millions more for error correction. Hartmut Neven (head of Google’s Quantum Artificial Intelligence Lab at Venice, California) said that Google hopes the goal will be reached by the end of this decade. He is also part Dr. Spiropolou’s group.
Richard Feynman, Caltech physicist, and Nobel laureate in Physics, once predicted that the ultimate application of this quantum force might be for quantum physics research itself as in the wormhole experiment.
Dr. Nevin said, “I’m thrilled to see that researchers are able to make Feynman’s dreams come true.”
The experiment was done on a copy Google’s Sycamore 2 computer with 72 qubits. To reduce interference and noise, the team used only nine of these qubits. Two of them were called reference qubits and played the roles of inputs and outputs in the experiment.
Two versions of the code were found in the seven other qubits. They described a “sparse”, simplified version of a 3D model called SYK. These codes are named after their three creators. Super SachdevGino Yee, from Harvard University, and Alexei Kitaev, from Caltech. Both SYK models can be packed into the same seven quibits. In the experiment, these SYK systems acted like two black holes, one by converting a message into nonsense — the quantum equivalent of swallowing it — and then the other by ejecting it back out.
“In this we throw a qubit,” said Dr. Laikin, referring to the input message—the quantum analogue of a string of ones and zeros. This qubit interacted to the first copy SYK quibit. Its meaning became random noise, and it disappeared.
The two SYK systems were connected by the ticking of a quantum clock. A shock of negative energy was then transmitted from one system to the other, briefly unlocking it.
The signal then reappeared in its original, unsorted form – in the ninth qubit, which is associated to the second SYK systems, which represent the other end of wormhole.
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