Quantum Technology Laboratory (QTL) Headed by professors Per Delsing and @JonasBylander2. Developing technologies in #quantumcomputing w/ #superconductingqubits
Gothenburg, Sweden
Joined July 2020
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We have several post-docs available in our group focusing on experimental quantum computing with superconducting qubits covering all areas of scaling our systems from coherence to control! The application deadline is April 30. @wacqt_sweden @chalmersuniv
chalmers.se/en/about-chalmer…
We have another successful PhD from the lab of professor @WitlefW! @sushonomics did a fantastic job today defending his work on developing a platform for investigating optomechanical couplings in III-V heterostructures!
Our work developing TWPAs has received an editors pick! We demonstrate in this work 20dB of gain with a 3dB BW of 1GHz in three-wave mixing. By engineering a bandgap we suppress the generation and propagation of the 2nd harmonic and all higher harmonics
aip.scitation.org/doi/10.106…
We have yet another successful PhD from our group! Congratulations Martí and also Proffessor @WitlefW on your first PhD student! Martí worked extensively on magnetic levitation, developing several techniques to study quantum foundations. @wacqt_sweden @chalmersuniv
And thank you Dr. Steven Girvin (of @Yale_QI) for acting as opponent. Marina has done an increadible job setting up our continuous variable capabilities over the past 5 years.
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We have several openings in our group
Two for software positions helping to develop our QC stack both the backend infrastructure and web interface
1) tinyurl.com/zkufftu4
2) tinyurl.com/2rkkctcr
And two for hardware development focusing on quantum device packaging
3) tinyurl.com/yc32zur8
4) tinyurl.com/2xe26v6j
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Our work on developing 3D integrated superconducting qubits has recently been published in QST
doi.org/10.1088/2058-9565/ac…
And following the trend of quantum computing papers these days, many of the interesting details are in the supplement. Great work @sandokokosen & @hangxi_li
We are happy to open two post-doc positions with our experimental team! Both are focused on attacking the problem of gate fidelities in superconducting processors from different angles. One on the control side and the second on materials and coherence! tinyurl.com/574kjk88
Come check out our talks! Only one week until @APSphysics @APSMeetings #apsmarch meeting starts! @warrench92 @JonasBylander2 @AntonFKockum @Amr_Osman_ @sandokokosen
Congratulations Dr @ScigliuzzoM!!! We have added a bright, new PhD to the community today. His work has focused on understanding the fundamental interactions between quantum systems and the environment. Incredibly proud of what he has accomplished!
Great tools make for great devices and even better science! The more initiatives like this, the faster the field will progress, and the closer we will come to #QuantumComputing. It will take an army of minds to build one. We're happy to contribute our small sliver @qiskit
Qiskit Metal is officially released. For more information read the blog where you can see how to design real quantum hardware with some data from our colleagues at Chalmers @qiskit link.medium.com/CN245kBRKeb
Congratulations @Amr_Osman_ on your first paper of your PhD. In this work we looked at simplifying the junction fabrication to a single lithography step and investigate the limitations of junction reproducibility
aip.scitation.org/doi/10.106…
My First paper with @QTL_Chalmers published today in Applied Physics Letters @AIP_Publishing
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Together with @qudev we developed a technique using a qubit as a primary thermometer to measure thermal occupation of propogating fields in cQED systems. This has broad application in quantum thermodynamics, transport, and mesoscopic calorimetry.
journals.aps.org/prx/abstrac…
Proud of the work of PhD student @Amr_Osman_ developing techniques to reduce the number of lithography steps in junction fabrication
Our work on a simplified fabrication process of Josephson junctions for qubits: We demonstrate reproducibly high qubit coherence and low wafer-scale JJ-resistance variation, and quantify the sources of this variation.
arxiv.org/abs/2011.05230
@QTL_Chalmers
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Our paper implementing the QAOA algorithm for the exact cover problem on a small quantum processor was published today in PR Applied. We demonstrate for the first time increased success probability with increased depth up to p=2 @abengtsson91 @warrench92
journals.aps.org/prapplied/a…
Our paper on high quality factor 3D aluminum cavities has been published in Applied Physics Letters and has been chosen as the editor's pick. We use etching and annealing techniques to achieve internal quality factors exceeding 80e6 reproducibly.
aip.scitation.org/doi/10.106…
1/n So we'd like to share a little something we've been working on over the summer. As people are developing up the stack in terms of applications for quantum computing, very little attention gets put on the lower end. This ends up meaning that @qiskit is a theorist tool.
We are always looking for new PhD candidates and post-docs to join us in Sweden as part of @OpenSuperQ and the Wallenberg Center for Quantum Technologies #WACQT. Find information at: chalmers.se/en/centres/wacqt…