• Publications
  • Influence
Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
It is shown that the strong coupling regime can be attained in a solid-state system, and the concept of circuit quantum electrodynamics opens many new possibilities for studying the strong interaction of light and matter.
Coupling superconducting qubits via a cavity bus
These experiments show that two nearby qubits can be readily coupled with local interactions, and show the implementation of a quantum bus, using microwave photons confined in a transmission line cavity, to couple two superconducting qubits on opposite sides of a chip.
Qubit-photon interactions in a cavity: Measurement-induced dephasing and number splitting
We theoretically study measurement-induced dephasing of a superconducting qubit in the circuit QED architecture and compare the results to those obtained experimentally by Schuster et al. [Phys. Rev.
Protecting a spin ensemble against decoherence in the strong-coupling regime of cavity QED
Hybridized systems offer a promising route for developing quantum devices, but inhomogeneous broadening limits the practical use of large spin ensembles. Suppression of the decoherence induced by
ac Stark shift and dephasing of a superconducting qubit strongly coupled to a cavity field.
Spectroscopy of a superconducting charge qubit coupled nonresonantly to a single mode of an on-chip resonator and a crossover in line shape with measurement power is observed and theoretically explained.
Cavity QED with magnetically coupled collective spin states.
Strong coupling between an ensemble of nitrogen-vacancy center electron spins in diamond and a superconducting microwave coplanar waveguide resonator is reported and hyperfine coupling to (13)C nuclear spins is measured, which is a first step towards a nuclear ensemble quantum memory.
Cavity QED with an ultracold ensemble on a chip: Prospects for strong magnetic coupling at finite temperatures
We study the nonlinear dynamics of an ensemble of cold trapped atoms with a hyperfine transition magnetically coupled to a resonant microwave cavity mode. Despite the minute single-atom coupling, one
Smooth Optimal Quantum Control for Robust Solid-State Spin Magnetometry.
We experimentally demonstrate a simple yet versatile optimal quantum control technique that achieves tailored robustness against qubit inhomogeneities and control errors while requiring minimal
Spectral hole burning and its application in microwave photonics
Rabi oscillations with a decay time of 26.7 μs are observed in a system comprising the electron spins in a diamond nitrogen–vacancy centre and a superconducting microwave cavity. Such oscillations
Superradiant emission from colour centres in diamond
Superradiance is a fundamental collective effect where radiation is amplified by the coherence of multiple emitters1. Superradiance plays a prominent role in optics (where it enables the design of