Hybrid quantum systems based on magnonics
Engineered quantum systems enabling novel capabilities for computation and sensing have
blossomed in the last decade. Architectures benefiting from combining complementary …
blossomed in the last decade. Architectures benefiting from combining complementary …
Towards understanding two-level-systems in amorphous solids: insights from quantum circuits
Amorphous solids show surprisingly universal behaviour at low temperatures. The
prevailing wisdom is that this can be explained by the existence of two-state defects within …
prevailing wisdom is that this can be explained by the existence of two-state defects within …
1/f noise: Implications for solid-state quantum information
The efficiency of the future devices for quantum information processing is limited mostly by
the finite decoherence rates of the individual qubits and quantum gates. Recently …
the finite decoherence rates of the individual qubits and quantum gates. Recently …
Interacting two-level defects as sources of fluctuating high-frequency noise in superconducting circuits
Since the very first experiments, superconducting circuits have suffered from strong coupling
to environmental noise, destroying quantum coherence and degrading performance. In state …
to environmental noise, destroying quantum coherence and degrading performance. In state …
Phonon engineering of atomic-scale defects in superconducting quantum circuits
Noise within solid-state systems at low temperatures can typically be traced back to material
defects. In amorphous materials, these defects are broadly described by the tunneling two …
defects. In amorphous materials, these defects are broadly described by the tunneling two …
Entanglement of Two Superconducting Qubits in a Waveguide Cavity<? format?> via Monochromatic Two-Photon Excitation
We report a system where fixed interactions between noncomputational levels make bright
the otherwise forbidden two-photon| 00⟩→| 11⟩ transition. The system is formed by hand …
the otherwise forbidden two-photon| 00⟩→| 11⟩ transition. The system is formed by hand …
Quantum process tomography of two-qubit controlled-Z and controlled-NOT gates using superconducting phase qubits
We experimentally demonstrate quantum process tomography of controlled-Z and controlled-
NOT gates using capacitively coupled superconducting phase qubits. These gates are …
NOT gates using capacitively coupled superconducting phase qubits. These gates are …
Multimode mediated qubit-qubit coupling and dark-state symmetries in circuit quantum electrodynamics
Microwave cavities with high quality factors enable coherent coupling of distant quantum
systems. Virtual photons lead to a transverse interaction between qubits when they are …
systems. Virtual photons lead to a transverse interaction between qubits when they are …
Measuring the Temperature Dependence of Individual Two-Level Systems<? format?> by Direct Coherent Control
We demonstrate a new method to directly manipulate the state of individual two-level
systems (TLSs) in phase qubits. It allows one to characterize the coherence properties of …
systems (TLSs) in phase qubits. It allows one to characterize the coherence properties of …
A Tutorial on Quantum Master Equations: Tips and tricks for quantum optics, quantum computing and beyond
Quantum master equations are an invaluable tool to model the dynamics of a plethora of
microscopic systems, ranging from quantum optics and quantum information processing, to …
microscopic systems, ranging from quantum optics and quantum information processing, to …