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Barkay Guttel

@bguttel.bsky.social
81 followers 49 following 19 posts

Experimentalist. Quantum computing with superconducting circuits for the win!

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Barkay Guttel @bguttel.bsky.social · 25/09/2026
New opportunity: @weizmann.ac.il has launched The Outstanding Postdoctoral Program for international researchers. Includes a fully funded 5–7 day preliminary campus visit and a 3-year fellowship ($55k/year). Deadline: Nov 15, 2026 Details & apply: info.weizmann.ac.il/en/outstandi...
info.weizmann.ac.il
Outstanding Postdoctoral Program | Weizmann Institute of Science
The Outstanding Postdoctoral Program at the Weizmann Institute of Science is offered through the Weizmann School of Science and is designed to attract exceptional international postdoctoral researcher...
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Barkay Guttel @bguttel.bsky.social · 29/08/2026
I didn't know solar panels were under debate. So the argument here is against the magnetic field?
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Barkay Guttel @bguttel.bsky.social · 22/04/2026
@newquantumera.com
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
And the traditional meme: @dulwichquantum.bsky.social
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
The textbook story of measurement as instantaneous collapse hides a rich dynamical landscape. Now we've mapped it. arxiv.org/abs/2602.02672 @fabienlafont.bsky.social
arxiv.org
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
What theory didn't predict: decoherence rearranges the whole picture. The first two transitions swap order. The real phase diagram is fundamentally restructured, not just smeared.
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
First: oscillations suddenly die at an exceptional point- quantum jumps are born. Second: the qubit gets stuck near one state, dwell time diverges. Third: the Zeno regime- more measurement, less dynamics.
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
Theory (Snizhko et al., 2020) predicted the crossover from quantum to classical-looking dynamics wouldn't be smooth. Instead: three sharp dynamical transitions. We've now seen all three for the first time in a superconducting qubit.
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Barkay Guttel @bguttel.bsky.social · 06/02/2026
What happens when you open Schrödinger's box not all at once, but gradually? We answered this experimentally- and the answer isn't what anyone expected. 🧵
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Barkay Guttel @bguttel.bsky.social · 21/12/2025
Not sure what it is, but pretty sure it's not quantum. @quantuminthings.bsky.social
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Barkay Guttel @bguttel.bsky.social · 21/09/2025
In our lab everybody has converged toward Sony. Each person bought at a different time so the models are different, but generally speaking everybody is happy and is able to work with the fridge noise in the background...
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Barkay Guttel @bguttel.bsky.social · 15/07/2025
It's only entanglement if it comes from the entangle region in France. Otherwise it's just bubbling correlation.
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Reposted by Barkay Guttel
Eli LF @elilevensonfalk.bsky.social · 17/06/2025
Our latest preprint is a review explaining all about quantum Zeno physics. Again following @dulwichquantum.bsky.social 's rule, here's the meme summary (the answer is yes) arxiv.org/abs/2506.12679
Patrick Star asking "Is mayonnaise the quantum Zeno effect?"
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Barkay Guttel @bguttel.bsky.social · 03/04/2025
I have a theory that Andreas just adds slides to the same presentation throughout his career and only hides different ones for different occasions.
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Barkay Guttel @bguttel.bsky.social · 30/03/2025
When you mess up the units.
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Barkay Guttel @bguttel.bsky.social · 25/03/2025
Totally agree. In the research they summarize (I didn't read the full version) the examiners got the CV where *all authors* are named. If they were from the field and facing the first author's name more frequently it would have made a difference for sure.
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Barkay Guttel @bguttel.bsky.social · 23/03/2025
@quantuminthings.bsky.social
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Barkay Guttel @bguttel.bsky.social · 16/03/2025
Come to my talk at the APS meeting! Danielle and I are presenting in a two-part talk our experimental results showing the transition into the quantum jump regime, and the onset of the quantum Zeno effect. It's going to be great! :) Monday, session B17, room 161. summit.aps.org/events/MAR-B...
summit.aps.org
Superconducting Cavity-Qubit Architectures I
11:30 am – 2:06 pm, Monday March 17, Session MAR-B17, Anaheim Convention Center, 161 (Level 1)
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Barkay Guttel @bguttel.bsky.social · 14/03/2025
Maybe someone from Amazon about their architecture?
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Barkay Guttel @bguttel.bsky.social · 10/03/2025
We started with b, the CNC workshop here, but now we mostly order from Xometry and do small stuff/fixes at the "traditional" workshop here.
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