Deividas Sabonis

📣We are hiring! The Co-Packaged Optics group at IBM Research Zurich is seeking a new PhD student to work on ultra-efficient integrated photonic devices. All details can be found below - please feel free to share within your networks! zurich.ibm.com/careers/2025_0…

IBM hätte sein neues Rechenzentrum überall weltweit bauen können — und hat sich für Ehningen entschieden. Wir treiben die Quantentechnologien in Deutschland voran und investieren in Forschung und Entwicklung — also in die Grundlage unseres Erfolgs und Wohlstands!

Inductive coupling between a superconducting resonator and a Josephson junction in germanium by means of flip-chip bonding enables microwave spectroscopy, showing discrete and gate-tunable Andreev bound states in short and long junctions. @IBMResearch go.aps.org/3N2YgE1

A resonator is inductively coupled to a superconducting island, enabling fast and high-fidelity measurement of its parity. @IBMResearch @ETH_en go.aps.org/3WNBvsi

Well, this was certainly one of the most authentic and captivating books in a while. Where physics and technology meets business and government.

@AguadoQuantum @SPICE_Mainz It was great @AguadoQuantum . Thanks for organising!

We have just finished three intense days at our workshop on Quantum Matter for Quantum Technologies. Top science with amazing people in a region with great wines. What more could we ask for? Big thanks to @SPICE_Mainz and our host Jairo Sinova for the fantastic support!

Michel Devoret of @YalePhysicsDept and @Yale_QI remembers his upbringing in France, molecular physics @UnivParisSaclay, quantum tunneling @BerkeleyPhysics, launching the Quantronics Lab, and quantum computing as a multidisciplinary physics endeavor aip.org/history-progra…

This was a great recent reading on the other kind of “classical many-body dynamics”. Great with practical insights for daily situations in the life of the lab and in life more generally.

Three in a row! Congratulations to the outstanding international collaborations, resulting in three remarkable publications at @NatureComms published over the past two days within @Sfb1432 projects A02 and A03 of @UniKonstanz and our Mercator Fellow @JCarlosCuevas_R | @dfg_public

Our paper on "Phase-engineering the Andreev band structure of a three-terminal Josephson junction" appeared today in @NatureComms. Another great collaboration with Fabrizio Nichele's group (IBM Zurich) and Wolfgang Belzig's group @QtUkon. Read about it in: nature.com/articles/s4146…

Our paper on "Microwave-induced conductance replicas in hybrid Josephson junctions without Floquet-Andreev states" appeared today in @NatureComms. Great collaboration with Fabrizio Nichele's group (IBM Zurich) and Wolfgang Belzig @QtUkon. Read about it in: nature.com/articles/s4146…

Last night the Las Vegas sphere was used to simulate a quantum computer. The fidelity was amazing, but scaling beyond one qubit will be tough 😣

Would you be excited to celebrate 20 years of Circuit QED with us January 10-12, 2024 in New Haven, CT. On this occasion the superconducting #quantum circuits community will gather at @Yale University for an eventful three days. Check out the tentative program and speaker list here: quantuminstitute.yale.edu/CircuitQED20 or here: view.message.yale.edu/?qs=f9f82b4eb1… Secure one of the limited number of spots to learn about the newest research and take a peak into the #science history books. It will be a good occasion to share some old photos such as the one below. @circuitqed @schusterqed @scqubits @nanonoodle @Yale_QI

IQIM rides again! My colleagues and I are excited by this opportunity to make more great discoveries in our next 6-year cycle. Thanks, @NSF and @Caltech, for supporting @IQIM_Caltech, and thank you @whitnutt for the nice article. caltech.edu/about/news/cal…

Several colleagues and I are organizing an @AspenPhysics Winter Conference on *Computing with Physical Systems*. Applications for participation are now open; for details, see mcmahon.aep.cornell.edu/aspen/2024/. I'm sure it's going to be a very interesting meeting -- please join us!

Now published: journals.aps.org/prb/abstract/1…

In the second one, we show the electrostatic control of transition/poisoning rates in a superconducting island (by several orders of magnitude). arxiv.org/abs/2202.05970

Two new preprint today @arxiv. In the first one, we study parity switching (quasiparticle poisoning) in a hybrid superconductor-semiconductor qubit. arxiv.org/abs/2202.05974

Now published journals.aps.org/prb/abstract/1…

New preprint today on @arxiv. arxiv.org/abs/2209.03688, where we investigate few-mode to mesoscopic junction effects in gatemon qubits. A detailed model of the wire and junction yields behavior consistent with experiment.

In the second one, we report on experimental realization of spin degeneracy breaking in multi-terminal hybrid Josephson junctions. Exciting times ahead. arxiv.org/abs/2307.06715

Two new preprints today on @arxiv. In the first one, we demonstrate fast parity readout and its time-resolved monitoring in a planar super-semi system using flip-chip-based inductive detection approach. arxiv.org/abs/2307.06718