Dominik Zumbuhl

Director, NCCR SPIN, and Professor of Physics, University of Basel

[Dominik Zumbuhl @DMZumbuhl]

@PhysicsHenry @KLM 😂🥳 Happy birthday, Henry!!

[Fermat's Library @fermatslibrary]

Basel Problem: 1/1² + 1/2² + 1/3² + 1/4² + ... = ?

Some of the brightest mathematicians like Newton, Liebniz and Jakob Bernoulli struggled with this simple series.

It was only in 1734 that Euler - at the age of 27 - found that this infinite series converged to π²/6.

[Ted C. Y. Chang @TediousQuantum]

@DMZumbuhl introduces me saying i make good tweets and recommends following. I will put this on my cv.

[Henry Legg @PhysicsHenry]

Are you a master or PhD student interested in spin qubits?

On behalf of @nccrSpin I will be teaching an online course on spin-based quantum computing, along with colleagues from @UniBasel

Starts: 29.02.24

Register: https://t.co/hkjUDu3XVI

More info: https://t.co/trPYHtII2q

[Dominik Zumbuhl @DMZumbuhl]

What's common between driving a bike and a spin qubit?

The faster it goes, the more stable it is.
At least for some spin qubits!

Angular p-conservation vs. direct-Rasbha spin-orbit interaction

Spin cartoon, left;
Miguel on toddler bike, right, 1996
https://t.co/iSaaYrkbhu

[nccrSpin @nccrSpin]

NCCR SPIN's Prof. Dominik Zumbühl is named APS fellow 2023 "for quantum transport experiments in semiconductor nanostructures at low temperatures studying coherence, spins, and spin-orbit coupling including developing and deploying laboratory instruments.“ Congratulations!

[Dominik Zumbuhl @DMZumbuhl]

Documentary NZZ Format on Quantum Computing
on the air last week on Swiss TV...

Thanks, Julia Schwamborn, for the efforts and very nice work!

https://t.co/vX9XJFN9XS

[Dominik Zumbuhl @DMZumbuhl]

Identifying Pauli spin blockade (PSB) using deep learning

Machine learning automatically identifying PSB from transport measurement on a Silicon FinFET with 96% accuracy and training data augmented by simulations

Oxford @NAresgroup and Basel @DMZumbuhl
https://t.co/7pwqJMvdib

[Dominik Zumbuhl @DMZumbuhl]

Open Rank Professorship in experimental quantum nanophysics, quantum materials, quantum transport and/or topological systems @UniBasel.

Another week until screening of files starts from May 15, 2023, continues until filled.

Apply https://t.co/DKXacXz0Un

[nccrSpin @nccrSpin]

Extended deadline to submit your abstract for the Quantum Computing session of the Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society until 15.05.2023! This session is organized y NCCR SPIN. More info: https://t.co/jU9QB0suTT

[Dominik Zumbuhl @DMZumbuhl]

@nccrSpin These are SrTiO varactors – V-tunable capacitors – with range ideal for Z-matching qubit readout circuits, shown with Ge/Si nanowire dots, see Fig. below.

STO works down to 10 mK and indep. of B-field, in contrast to GaAs
With @erikbakkers and @nccrSpin @TOPSQUAD2020 @UniBasel

[Dominik Zumbuhl @DMZumbuhl]

Open Rank Professorship in experimental quantum nanophysics, quantum materials, quantum transport and/or topological systems @UniBasel.

Synergies with @SNIunibas and @nccrSpin are advantageous

Screening from May 15, 2023, continues until filled.
Apply https://t.co/DKXacXz0Un

[Dominik Zumbuhl @DMZumbuhl]

World Quantum Day
@nccrSpin Swiss Q-Computing Network

What do our young researchers think about "Quantum"?
https://t.co/JQrsC2HM0f

@QuantumBasel event with broadcast from the NCCR SPIN Lab at Uni Basel
https://t.co/wGhzZl032G https://t.co/kEPGqRstqB
32' Miguel & Dominik

[Dominik Zumbuhl @DMZumbuhl]

Measurement-induced population switching

The DD (cyan) stability diagram goes from usual diagonal line (left) towards S-shape (right panel) with bias on sensor (pink, 75 uV), switching the (0,1) and (1,0) charge states due to back action (dashed black)

https://t.co/NzSCdmJP1I

[Dominik Zumbuhl @DMZumbuhl]

Hybrid Quantum Technologies Workshop
AND Germanium Day
@ISTAustria

Great talk by Natalia @NAresgroup
with very nice overview (slide)! 👏

And thanks a lot Georgios Katsaros
for a great meeting! 👍🙏

https://t.co/j1YeSH8JO1

[Dominik Zumbuhl @DMZumbuhl]

Quantum Symposium US-Switzerland
@uptownBasel

bringing together scientists from quantum computing from both countries and from academia and industry

Watch interviews with Daniel Loss, Dima Abanin, and @DMZumbuhl and several others (some in English)

https://t.co/jLtyVbQroK

[Dominik Zumbuhl @DMZumbuhl]

Audio-visual performance illustrating key concepts in quantum computing such as qubits and entanglement set on the stage of Tinguely's great kinetic sculptures

Tinguely Entangled
https://t.co/kmtfJiBfRA

Congratulations to the artists and physicists on a truly wonderful show!

[Dominik Zumbuhl @DMZumbuhl]

@NicolaSpaldin @UniBasel_en Looking forward to it!
(there's still the ride to Basel for further preparations :-)

[Dominik Zumbuhl @DMZumbuhl]

Here's the photo:

[Dominik Zumbuhl @DMZumbuhl]

Simon Geyer received one of the APS Distinguished Student Awards at the APS March meeting 2023 Las Vegas from Christine Darve, FIP Chair 2023 (left), and Young-Kee Kim, APS President Elect 2023 (right).
Congratulations, Simon! Work done with @Kuhlmann_AV @UniBasel @IBMResearch