A revolution is underway in the construction of ‘artificial atoms’ out of superconducting electrical circuits.  These macroscopic ‘atoms’ have quantized energy levels and can emit and absorb quanta of light (in this case microwave photons), just like ordinary atoms.  Unlike ‘real’ atoms, the properties of these artificial atoms can be engineered to suit various particular applications, and they can be connected together by wires to form quantum ‘computer chips.’  This so-called ‘circuit QED’ architecture has given us the ability to do non-linear quantum optics in electrical circuits at the single photon level.  It is now possible to entangle multiple qubits, count individual microwave photons, create large ‘Schrödinger cat’ photon states and perform quantum feedback.  This talk will present an elementary introduction to the field.


Talk Number PIRSA:12110041
Speaker Profile Steve Girvin
Collection Colloquium