747 citations · 3.1k across the 32 of their papers we have counts for
33 papers
Coherent and ultra-low-power EDSR with a flopping-mode spin qubit in germanium
Alexei Orekhov, Wonjin Jang, Pan Zhang +13
Hole spin qubits in semiconductor quantum dots (QDs) enable high-fidelity all-electric control, but conventional electric dipole spin resonance (EDSR) can require substantial rf dr…
Frequency-resolved decoherence spectroscopy of a semiconductor charge qubit coupled to a high-impedance resonator
Ekaterina Al-Tavil, Wonjin Jang, David J. van Woerkom +10
Superconducting resonators coupled to semiconductor quantum dots provide a powerful platform to investigate light-matter interaction and decoherence mechanisms in solid-state quant…
Dispersive detection of single microwave photons with quantum dots
Stephanie Matern, Alberto Biella, Pasquale Scarlino +2
Within a circuit quantum electrodynamics architecture, we theoretically investigate the detection of a single propagating microwave photon traveling through a resonant microwave ca…
High-Efficiency Tunable Microwave Photon Detector Based on a Semiconductor Double Quantum Dot Coupled to a Superconducting High-Impedance Cavity
Fabian Oppliger, Wonjin Jang, Aldo Tarascio +6
High-efficiency single-photon detection in the microwave domain is a key enabling technology for quantum sensing, communication, and information processing. However, the extremely…
Integration of Cobalt Ferromagnetic Control Gates for Electrical and Magnetic Manipulation of Semiconductor Quantum Dots
Fabio Bersano, Michele Aldeghi, Niccolò Martinolli +6
The rise of electron spin qubit architectures for quantum computing processors has led to a strong interest in designing and integrating ferromagnets to induce stray magnetic field…
Entangled Photon-Pair Emission in Waveguide Circuit QED from a Cooper Pair Splitter
Michele Governale, Christian Schönenberger, Pasquale Scarlino +1
As a waveguide circuit QED architecture, we investigate theoretically the single-photon pair emission of a Cooper pair splitter composed of two double quantum dots, each coupled to…
A coherence sweet spot with enhanced dipolar coupling
Jann H. Ungerer, Alessia Pally, Stefano Bosco +9
Qubits require a compromise between operation speed and coherence. Here, we demonstrate a compromise-free singlet-triplet (ST) qubit, where the qubit couples maximally to the drivi…
Strong hole-photon coupling in planar Ge for probing charge degree and strongly-correlated states
Franco De Palma, Fabian Oppliger, Wonjin Jang +7
Semiconductor quantum dots (QDs) in planar germanium (Ge) heterostructures have emerged as front-runners for future hole-based quantum processors. Here, we present strong coupling…
Dephasing in a crystal-phase defined double quantum dot charge qubit strongly coupled to a high-impedance resonator
Antti Ranni, Subhomoy Haldar, Harald Havir +8
Dephasing of a charge qubit is usually credited to charge noise in the environment. Here we show that charge noise may not be the limiting factor for the qubit coherence. To this e…
Strong coupling between a microwave photon and a singlet-triplet qubit
Jann H. Ungerer, Alessia Pally, Artem Kononov +9
Tremendous progress in few-qubit quantum processing has been achieved lately using superconducting resonators coupled to gate voltage defined quantum dots. While the strong couplin…
Fully tunable longitudinal spin-photon interactions in Si and Ge quantum dots
Stefano Bosco, Pasquale Scarlino, Jelena Klinovaja +1
Spin qubits in silicon and germanium quantum dots are promising platforms for quantum computing, but entangling spin qubits over micrometer distances remains a critical challenge.…
Extensible quantum simulation architecture based on atom-photon bound states in an array of high-impedance resonators
Marco Scigliuzzo, Giuseppe Calajò, Francesco Ciccarello +7
Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora of exotic light-matter interactions. In particular, photonic lattices can seed long-lived…
In-situ Tuning of the Electric Dipole Strength of a Double Dot Charge Qubit: Charge Noise Protection and Ultra Strong Coupling
P. Scarlino, J. H. Ungerer, D. J. van Woerkom +10
Semiconductor quantum dots, where electrons or holes are isolated via electrostatic potentials generated by surface gates, are promising building blocks for semiconductor-based qua…
Roadmap for gallium arsenide spin qubits
Ferdinand Kuemmeth, Hendrik Bluhm
Gate-defined quantum dots in gallium arsenide (GaAs) have been used extensively for pioneering spin qubit devices due to the relative simplicity of fabrication and favourable elect…
Realization of a Qubit: energy spectroscopy and coherence
Benedikt Kratochwil, Jonne V. Koski, Andreas J. Landig +9
The energy landscape of a single electron in a triple quantum dot can be tuned such that the energy separation between ground and excited states becomes a flat function of the rele…
Strong photon coupling to the quadrupole moment of an electron in solid state
Jonne V. Koski, Andreas J. Landig, Maximilian Russ +11
The implementation of circuit quantum electrodynamics allows coupling distant qubits by microwave photons hosted in on-chip superconducting resonators. Typically, the qubit-photon…
Coherent long-distance spin-qubit-transmon coupling
A. J. Landig, J. V. Koski, P. Scarlino +10
Spin qubits and superconducting qubits are among the promising candidates for a solid state quantum computer. For the implementation of a hybrid architecture which can profit from…
Microwave cavity detected spin blockade in a few electron double quantum dot
A. J. Landig, J. V. Koski, P. Scarlino +5
We investigate spin states of few electrons in a double quantum dot by coupling them weakly to a magnetic field resilient NbTiN microwave resonator. We observe a reduced resonator…
Coherent microwave photon mediated coupling between a semiconductor and a superconductor qubit
P. Scarlino, D. J. van Woerkom, U. C. Mendes +10
Semiconductor qubits rely on the control of charge and spin degrees of freedom of electrons or holes confined in quantum dots (QDs). They constitute a promising approach to quantum…
Microwave photon-mediated interactions between semiconductor qubits
David J. van Woerkom, Pasquale Scarlino, Jann H. Ungerer +8
The realization of a coherent interface between distant charge or spin qubits in semiconductor quantum dots is an open challenge for quantum information processing. Here we demonst…
Floquet spectroscopy of a strongly driven quantum dot charge qubit with a microwave resonator
J. V. Koski, A. J. Landig, A. Pályi +7
We experimentally investigate a strongly driven GaAs double quantum dot charge qubit weakly coupled to a superconducting microwave resonator. The Floquet states emerging from stron…
Coherent spin-qubit photon coupling
A. J. Landig, J. V. Koski, P. Scarlino +7
Electron spins hold great promise for quantum computation due to their long coherence times. An approach to realize interactions between distant spin-qubits is to use photons as ca…
All-Microwave Control and Dispersive Readout of Gate-Defined Quantum Dot Qubits in Circuit Quantum Electrodynamics
P. Scarlino, D. J. van Woerkom, A. Stockklauser +8
Developing fast and accurate control and readout techniques is an important challenge in quantum information processing with semiconductor qubits. Here, we study the dynamics and t…
A programmable two-qubit quantum processor in silicon
T. F. Watson, S. G. J. Philips, E. Kawakami +9
With qubit measurement and control fidelities above the threshold of fault-tolerance, much attention is moving towards the daunting task of scaling up the number of physical qubits…