How Physicists Are Using Quantum Computers to Hunt for Quantum Gravity

Credit: SerGRAY

One of the great challenges of science is to reconcile the two theories that make up modern physics. General relativity governs the universe on the largest scale while quantum field theory governs the universe on the smallest scale. These theories describe phenomena over a forty order of magnitude range.

What happens when these theories overlap? How does gravity behave on a quantum scale? The nature of quantum gravity makes it hard to observe it with current sensors.

To play with quantum gravity, you can use a quantum computer. Physicists say that they have found a way to transmit classical information perfectly from a chaotic quantum system, even though they have yet to perform a simulation of quantum gravity.