Rigetti Computing’s Post

“You get what you get and you don’t get upset.” In all my years working on superconducting qubits, this has been more or less my experience fabricating Josephson junctions (JJs). As Quantum Materials lead at Rigetti, a big part of my team’s job is figuring out how to improve the quality of those (JJs). Like basically everyone else, our JJs use aluminum oxide, which is a thin amorphous material. Until now, it seemed like devices based on these amorphous oxide JJs had an intrinsically large spread and were prone to defects. Recently, our team at Rigetti was astonished to discover that we could tune the properties of these junctions at ambient temperatures with a pretty simple alternating bias pulsing scheme -- right in the comfort of our regular probe station. This new process allowed us to more precisely tune the barrier while also seemingly reducing the number of defects in the junction! This left us wondering "how are we changing the junction?" So we sent some JJs to our collaborators at the SQMS Center. Thanks to the incredible work of Lin Zhou, Jinsu Oh and Matt Kramer at Ames National Laboratory, we could see that the alternating bias scheme was actually creating a more uniformly highly coordinated oxide within the junction. This is a great example of the power of collaborative research in quantum computing — our scientists and engineers in Fabrication, Measurement and Design teams (Dave Pappas, Mark Field, Ella Lachman, Ph.D, Cameron Kopas Joel Howard, Xiqiao Wang, Ph.D., Eyob A. Sete) worked closely to study the effect more deeply and rigorously and then with the amazing materials science expertise at SQMS to shed light on the underlying physics. I am proud to share that the paper introducing our novel technique, Alternating-Bias Assisted Annealing (ABAA), was published this week in Nature Communications Materials. You can read the full paper here: https://lnkd.in/gq8qFei2.

At the MicroTAS2024, Yusuke will present his research on "Microfluidic-based diffracted X-ray tracking method." #microTAS #Microfluidics

A little bit of one the latest lab experiments I carried out at UDLAP. Photodegradation of Methylene Blue and p-NDA with mesoporous ZnO under sun light after an hour. The wonders of nanomaterials and photocatalysis.

Enhanced sensitivity is just what BLI users need.

Bruker's next-generation Hysitron TI 990 TriboIndenter® sets new standards for performance, flexibility, and usability in nanomechanical and nanotribological characterisation. The Hysitron TI 990 TriboIndenter® achieves remarkable advances in control and throughput capabilities, testing flexibility, applicability, measurement reliability, and system modularity — enabling more and better research in nanodentation than previously possible.

Seminar details below looking at nanoindentation measurement at extreme temperatures, both hot and cold, - from cryogenic temperatures to elevated, this ground- breaking work should not be missed on 30th May at 3.00pm BST. Do you need to know more about nanoindentation testing at extreme temperatures? In the latest in our series of free, online seminars, Dr Hannah Zhang of National Physical Laboratory (NPL) will give an overview of instrumented indentation tests on hard metals, glasses and thin coatings carried out at various temperatures - from cryogenic to elevated. Register here: https://lnkd.in/dh7FkTaD Can't make the 30th May? Please consider registering anyway, as all registrants will receive a link to enable them to view the event at a later time. hashtag#materialsresearch hashtag#coatings hashtag#nanomechanicaltesting Activate to view larger image,

📢 New study alert featuring FluidFM! 🔎 "Reverse Mechanotransduction: Driving Chromatin Compaction to Decompaction Increases Cell Adhesion Strength and Contractility." Nano Letters, 2024🔗https://bit.ly/4aCp2NL Buisson et al.'s work highlights the pivotal role of chromatin remodeling in shaping cellular mechanics, regulating adhesion strength via a reverse mechanotransduction pathway from the nucleus to the cell surface, involving RhoA activation. 🔄💪 ✅This groundbreaking discovery, made possible by FluidFM technology, unlocks numerous possibilities for understanding and potentially manipulating cellular behavior in various physiological and pathological contexts. 🧬🔍 For more information about FluidFM Technology, visit: 🔗https://bit.ly/3Hy7UMk #CellBiology #ChromatinRemodeling #Mechanotransduction #ResearchBreakthroughs #FluidFMTechnology #FluidFM

🧑🏾🔬👩🏻🔬Do you sometimes feel overwhelmed 🤯with huge number of samples required to design the best instrument / probe / matrix for your spectroscopy analysis ? Save the date 📆 October 21 and learn how a Design of Experiments (DOE) approach can help identify the minimum number of samples required, thus resulting in saving time and resources while building more robust models.

Recently, Mani Teja Vijjapu, scientist at Advanced Sensors & Electronics Technologies (ASET), was invited to talk about the funded cooperative project "European Ecosystem for Green Electronics" (EECONE). In this project, the consortium around SAL aims to develop health monitoring devices, for example to monitor the #glucose and #ketone levels of diabetic patients. The special thing is, that these measurements will be done with a sensor made of #biodegradable and #biocompatible substrates. 🎥 If you want to know how the technology exactly works, you can watch the full interview on YouTube: https://lnkd.in/dCDRSxyF Learn more about the ASET Research Unit: https://lnkd.in/dv2EUDrt

The XXIV IMEKO World Congress 2024, organized by the PTB, the Physikalisch-Technische Bundesanstalt, will be held in Hamburg, Germany, on 26 – 29 August 2024. IT IS STILL NOT TOO LATE to submit papers! The theme of the congress addresses all topics of IMEKO’s 25 Technical Committees, as well as General Topics: General metrology Industrial metrology Dynamic measurements Quality infrastructure and  Special Focus Topics: Digitalization Artificial Intelligence Digital SI Quantum Technology Submit your abstract: https://lnkd.in/dfDJEn2n