Cornelius Hempel

Building a #quantumcomputer testbed at the @ETH_en-@psich_en Quantum Computing Hub | former @ARC_EQUS @Sydney_Uni and @iqoqi @uniinnsbruck

[Kenneth Brown @kenbrownquantum]

A thread about conical intersections.

When the pandemic started, all the experimentalists, including Jacob Whitlow and Zhubing Jia, were kicked out of lab. I suggested that Jacob and Gloria think about whether or not we could simulate conical intersections with our ion traps.

[Cornelius Hempel @CHQuant]

It’s been a few year since @IvanKassal and I talked about CIs over lunch and I moved to🇨🇭in the meantime. Now, with the hard work of many talented people, this analog QSim finally turned into reality. I am very proud of the teams @Sydney_Science @ARC_EQUS that made it happen!

[Ivan Kassal @IvanKassal]

📰Paper alert!
"Direct observation of geometric phase in dynamics around a conical intersection"
Geometric phases are counterintuitive and affect the outcomes of chemical reactions, but have never been directly observed... until now!
Preprint: https://t.co/DjsydOk0Ju

[Cornelius Hempel @CHQuant]

Only one more week until the #Quantum Industry Day in Switzerland, proudly supported by @ETHQuantumCntr It is not too late to sign up for the in-person event
#QuantumComputing #QuantumSensing #QuantumCommunication and more, go to https://t.co/u9slLsCRKX

[Cornelius Hempel @CHQuant]

Another exciting result from our very fruitful collaboration on simulating chemical dynamics between @SydneyChemistry @IvanKassal’s group and the quantum control laboratory @sydney_physics !

[Cornelius Hempel @CHQuant]

🚨 Job Alert 🚨

We are looking for a #SoftwareEngineer at the
@ETH_en - @psich_en #Quantum #Computing Hub!

https://t.co/DU45dLbXFs

[Cornelius Hempel @CHQuant]

@Ion_busters We have actually used RAP to measure the Fock state population in this way a couple of years ago when demonstrating EIT cooling with 18 ions. The technique was very well hidden in our paper, however: https://t.co/EHgNFfye4q

[Cornelius Hempel @CHQuant]

The #Quantum Industry Day in Switzerland is back in person this year! Oct, 4th at Technopark, Zurich. Save the date and sign up here https://t.co/u9slLsCRKX

@ETHQuantumCntr @IBMResearch @IDQuantique @CSEMInfo @Zhinst @SwissEuresearch @NCCR_QSIT @nccrSpin

[Cornelius Hempel @CHQuant]

Some very useful tips here:

[Jia-Bin Huang @jbhuang0604]

How to network at a conference?

Many students will be attending their first-ever *in-person* conference this year. How exciting! 🤩

Some tips on making the best of attending a conference. 🧵

[Cornelius Hempel @CHQuant]

„How to fool your potential investors“ - #QuantumComputing edition :

https://t.co/CqcLLHK6VK

[EPFL Center for Quantum Science & Engineering @QSECenter_EPFL]

Apply for the 2nd Quantum Computing Hard- and Software summer school, 13-17 June @EPFL_en! Deadline April 22.

Supported by us and the @ETHQuantumCntr, this program will bring Master's and PhD researchers to study quantum computing technologies.

https://t.co/krCRlwVB9j

[Cornelius Hempel @CHQuant]

@Tonyransford @DavidHa03746758 Again, our focus is on ultimate detection fidelity, if you managed to shelve to the F state. We suggest a few ways to do that as the D state decay you mention is limiting, otherwise.

[Cornelius Hempel @CHQuant]

@Tonyransford @DavidHa03746758 Point taken, we did not measure SPAM in the way you did but just how well we could separate the two populations - using the same technique you also pursued, we just did not think that 200 ms of shelving per shot is reasonable for any practical use…

[Natascha Hedrich @NataschaHedrich]

Still looking for something to do today? Look no further! Come by #SwissScienceCenterTechnorama, and see single atoms ⚛️ Also meet our team and ask all of your burning questions. Thanks to @ETH_physics, @snf_ch Agora, and Technorama for making this possible!

[Cornelius Hempel @CHQuant]

@DavidHa03746758 Erm, about that…
https://t.co/lnVWvKIQcX

[Cornelius Hempel @CHQuant]

We have an open #postdoc position in the ion trap section of the @ETH_en - @psich_en #Quantumcomputing Hub. Come join us to work on ion traps with integrated photonics. Apply here: https://t.co/dhcQCx5faB to work on devices like this one:

https://t.co/ZLVARJBNlB

[Cornelius Hempel @CHQuant]

Come join us as a tenure track scientist in ion trap quantum computing at the @ETH_en - @psich_en #Quantumcomputing Hub. Details can be found here: https://t.co/3sOO0SRSbO
(Image credit: PSI)

[Quantum Center, ETH Zurich, Switzerland @ETHQuantumCntr]

Today is #WomenScienceDay.

The new @ETH_en Quantum Center supports female Master students through the INSPIRE Potentials Master Award, to attract and empower excellent female students to conduct their Master's thesis research in one of our groups.

1/3

https://t.co/01EzgMO06A

[Cornelius Hempel @CHQuant]

Here is a link to the paper: https://t.co/Mj3RsPnGJV

[Cornelius Hempel @CHQuant]

It’s worth to re-share this link to help judge how much trust one should put into a rapid antigen test: 122 test kits evaluated by @PEI_Germany
Take away: if you have low viral load (e.g. thanks to a booster shot) most kits see nothing! https://t.co/IgYBkjD1Ca

[Cornelius Hempel @CHQuant]

@TilmanEsslinger @ETH_physics A bit further west at the @ETH_en @psich_en Quantum Computing Hub we saw it, too.