Physics – Quantum Physics
Scientific paper
2010-07-14
New Journal of Physics 13 (2011) 053032
Physics
Quantum Physics
Published Version
Scientific paper
By modeling the coupling of multiple superconducting qubits to a single cavity in the circuit-quantum electrodynamics (QED) framework we find that it should be possible to observe superradiance and phase multistability using currently available technology. Due to the exceptionally large couplings present in circuit-QED we predict that superradiant microwave pulses should be observable with only a very small number of qubits (just three or four), in the presence of energy relaxation and non-uniform qubit-field coupling strengths. This paves the way for circuit-QED implementations of superradiant state readout and decoherence free subspace state encoding in subradiant states. The system considered here also exhibits phase multistability when driven with large field amplitudes, and this effect may have applications for collective qubit readout and for quantum feedback protocols.
Delanty Michael
Rebic Stojan
Twamley Jason
No associations
LandOfFree
Superradiance and Phase Multistability in Circuit Quantum Electrodynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Superradiance and Phase Multistability in Circuit Quantum Electrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superradiance and Phase Multistability in Circuit Quantum Electrodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-120108