Hannes Pichler

On an ordinary optical table, amid lasers and mirrors, a cloud of a hundred strontium-87 atoms begins to live by the laws of curved spacetime. Half a second later, its quantum interference fades: gravitational time dilation destroys the superposition.

Detecting a faint signal against a noise background is like trying to hear a distant bell in a storm. Ordinary amplification only makes the din more deafening. Quantum error correction solves the problem in an unexpected way.

A quantum computer is like an orchestra where each musician plays their own part. With few instruments, the conductor can manage each one separately. But when there are thousands of musicians, individual commands become overwhelming.