Publications (12)
Magnetic resonance with squeezed microwaves
A. Bienfait, P. Campagne-Ibarcq, A. Holm-Kiilerich +9
Vacuum fluctuations of the electromagnetic field set a fundamental limit to the sensitivity of a variety of measurements, including magnetic resonance spectroscopy. We report the u…
Hyperfine spectroscopy in a quantum-limited spectrometer
S. Probst, G. L. Zhang, M. RanÄiÄ +12
We report measurements of electron spin echo envelope modulation (ESEEM) performed at millikelvin temperatures in a custom-built high-sensitivity spectrometer based on superconduct…
Anisotropic electrical resistivity of LaFeAsO: evidence for electronic nematicity
A. Jesche, F. Nitsche, S. Probst +3
Single crystals of LaFeAsO were successfully grown out of KI flux. Temperature dependent electrical resistivity was measured with current flow along the basal plane, Ï_perpend(T),…
Aluminium-oxide wires for superconducting high kinetic inductance circuits
H. Rotzinger, S. T. Skacel, M. Pfirrmann +7
We investigate thin films of conducting aluminium-oxide, also known as granular aluminium, as a material for superconducting high quality, high kinetic inductance circuits. The fil…
Strong coupling of an Er3+ doped YAlO3 crystal to a superconducting resonator
A. Tkalcec, S. Probst, D. Rieger +7
Quantum memories are integral parts of both quantum computers and quantum communication networks. Naturally, such a memory is embedded into a hybrid quantum architecture, which has…
Hybrid quantum circuit with implanted erbium ions
S. Probst, N. Kukharchyk, H. Rotzinger +6
We report on hybrid circuit QED experiments with focused ion beam implanted Er ions in YSiO coupled to an array of superconducting lumped element microwave resonator…
Inductive-detection electron-spin resonance spectroscopy with spins sensitivity
S. Probst, A. Bienfait, P. Campagne-Ibarcq +10
We report electron spin resonance spectroscopy measurements performed at millikelvin temperatures in a custom-built spectrometer comprising a superconducting micro-resonator at …
Optimal control of an inhomogeneous spin ensemble coupled to a cavity
Q. Ansel, S. Probst, P. Bertet +2
We apply optimal control techniques to an inhomogeneous spin ensemble coupled to a cavity. A general procedure is proposed for designing the control strategies. We numerically show…
3D Cavity quantum electrodynamics with a rare-earth spin ensemble
S. Probst, A. Tkalcec, H. Rotzinger +6
We present cavity QED experiments with an Er:YSO crystal magnetically coupled to a 3D cylindrical sapphire loaded copper resonator. Such waveguide cavities are promising for the re…
Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator
S. Probst, H. Rotzinger, S. Wünsch +5
Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. Ideal candidates for co…
Efficient and robust analysis of complex scattering data under noise in microwave resonators
S. Probst, F. B. Song, P. A. Bushev +2
Superconducting microwave resonators are reliable circuits widely used for detection and as test devices for material research. A reliable determination of their external and inter…
Microwave multimode memory with an Er:YSiO spin ensemble
S. Probst, H. Rotzinger, A. V. Ustinov +1
Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. In that respect, hybrid…