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TT: Tiefe Temperaturen

TT 10: Symposium Solid State Meets Quantum Optics

TT 10.1: Hauptvortrag

Montag, 27. März 2006, 14:30–15:00, HSZ 02

Circuit QED: Quantum Optics With Superconducting Electrical Circuits — •Steven Girvin — Sloane Physics Lab, Yale University, New Haven, CT 06520-8120 USA

Recent experimental breakthroughs have led to the construction of artificial superconducting ‘atoms’: electrical circuit elements whose state variables (voltages and currents) are intrinsically quantum mechanical. When placed inside a high Q resonator, these ‘atoms’ can strongly interact with single microwave photons. Tests of this new realization of strong-coupling cavity QED are now underway in the labs of Rob Schoelkopf and Michel Devoret at Yale. Recent experimental and theoretical results on quantum control, measurement and back action will be presented. Practical possibilities for generation of photon Fock states and squeezed vacuum states will be discussed. In addition to being a new test bed for quantum optics, this architecture has many promising features for quantum computation.