130 citations · 677 across the 14 of their papers we have counts for
14 papers
Waveguide quantum electrodynamics at the onset of spin-spin correlations
Sebastián Roca-Jerat, Marcos Rubín-Osanz, Mark D. Jenkins +4
We explore the competition between light-mediated and intrinsic matter-matter interactions in waveguide quantum electrodynamics. For this, we couple a superconducting transmission…
Probing the current-phase relation of graphene Josephson junctions using microwave measurements
Felix E. Schmidt, Mark D. Jenkins, Kenji Watanabe +2
We perform extensive analysis of graphene Josephson junctions embedded in microwave circuits. By comparing a diffusive junction at 15 mK with a ballistic one at 15 mK and 1 K, we a…
Enhanced molecular spin-photon coupling at superconducting nanoconstrictions
I. Gimeno, W. Kersten, M. C. Pallarés +9
We combine top-down and bottom-up nanolithography to optimize the coupling of small molecular spin ensembles to GHz on-chip superconducting resonators. Nanoscopic constrictio…
Current detection using a Josephson parametric upconverter
Felix E. Schmidt, Daniel Bothner, Ines C. Rodrigues +3
We present the design, measurement and analysis of a current sensor based on a process of Josephson parametric upconversion in a superconducting microwave cavity. Terminating a cop…
Observation and stabilization of photonic Fock states in a hot radio-frequency resonator
Mario F. Gely, Marios Kounalakis, Christian Dickel +5
Detecting weak radio-frequency electromagnetic fields plays a crucial role in wide range of fields, from radio astronomy to nuclear magnetic resonance imaging. In quantum mechanics…
Sideband cooling of nearly degenerate micromechanical oscillators in a multimode optomechanical system
C. F. Ockeloen-Korppi, M. F. Gely, E. Damskägg +3
Multimode optomechanical systems are an emerging platform for studying fundamental aspects of matter near the quantum ground state and are useful in sensitive sensing and measureme…
Bimodal Phase Diagram of the Superfluid Density in LaAlO3/SrTiO3 Revealed by an Interfacial Waveguide Resonator
Nicola Manca, Daniel Bothner, Ana M. R. V. L. Monteiro +6
We explore the superconducting phase diagram of the two-dimensional electron system at the LaAlO3/SrTiO3 interface by monitoring the frequencies of the cavity modes of a coplanar w…
A ballistic graphene superconducting microwave circuit
Felix E. Schmidt, Mark D. Jenkins, Kenji Watanabe +2
Josephson junctions (JJ) are a fundamental component of microwave quantum circuits, such as tunable cavities, qubits and parametric amplifiers. Recently developed encapsulated grap…
A scalable architecture for quantum computation with molecular nanomagnets
M. D. Jenkins, D. Zueco, O. Roubeau +3
A proposal for a magnetic quantum processor that consists of individual molecular spins coupled to superconducting coplanar resonators and transmission lines is carefully examined.…
Three addressable spin qubits in a molecular single-ion magnet
Mark David Jenkins, Yan Duan, Beatriz Diosdado +6
We show that several qubits can be integrated in a single magnetic ion, using its internal electronic spin states with energies tuned by a suitably chosen molecular environment. Th…
Coupling quantum circuits to magnetic molecular qubits
Mark D. Jenkins
This thesis explores the coupling of magnetic systems to quantum circuits in the context of quantum computing applications. In particular we study the coupling of superconducting c…
Nanometric constrictions in superconducting coplanar waveguide resonators
Mark David Jenkins, Uta Naether, Miguel Ciria +7
We report on the design, fabrication and characterization of superconducting coplanar waveguide resonators with nanoscopic constrictions. By reducing the size of the center line do…
Coupling single molecule magnets to quantum circuits
M. D. Jenkins, T. Hümmer, M. J. Martínez-Pérez +3
In this work we study theoretically the coupling of single molecule magnets (SMMs) to a variety of quantum circuits, including microwave resonators with and without constrictions a…
Surface-confined molecular coolers for cryogenics
Giulia Lorusso, Mark Jenkins, Pablo Gonzalez-Monje +5
An excellent molecule-based cryogenic magnetic refrigerant, gadolinium acetate tetrahydrate, is here used to decorate selected portions of silicon substrate. By quantitative magnet…