What can we learn from noisy quantum computers right now?

At present, quantum computers contain some 100 qubits, whose lifetime is only up four orders of magnitude longer than the time for a logic gate operation. Can one do something useful with such a device? I will argue that even these, very imperfect and noisy quantum...

Quantum sensors with matter waves

The past decades have seen significant progress in controlling the motion of atoms, resulting in quantum sensors that offer both fundamental and practical applications. These sensors can measure acceleration, rotation, and even detect gravitational waves with...