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mkorobko.bsky.social
Quantum physicist: quantum optics, gravitational-wave detectors and foundations of quantum mechanics | staff scientist @ Uni Hamburg | member of LIGO
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I had made Microsoft Quantum aware of issues before publication of this latest Nature paper (which uses it tune up their devices). Since they seem to not care, I have make these issues public. In short: The topological gap protocol and all claims based on it are flawed. arxiv.org/abs/2502.19560

submitted 4 days ago • 2 comments

You might've heard that we don't actually know the real speed of light. The reason is usually given to be that all our experiments actually measure two-way speed of light (e.g. to a mirror and back). It could be that the speed of light changes on the way there and back. It's no longer true! 🔭🧪

submitted 6 days ago • 2 comments

A few days ago the publisher told me that my recent review was selected for the cover, and I was to provide a nice engaging picture, asap. I've never drawn nice enganing pictures, so after a night with procreate, youtube and lots (LOTS) of coffee, the best I could do was this, please be engaged :D

submitted 11 days ago • 1 comment

This is a mega-thread of all Microsoft problems related to topological qubits. NOTE: I skip the numerous news reports and press releases, this thread is for serious _scientific_ and procedural materials First retraction: Quantized Majorana Conductance, from Nature www.nature.com/articles/nat...

submitted 12 days ago • 2 comments

My kids are tirlingual, and sometimes this delivers the funniest malapropisms. The older one is a fan of the "Epic" musical. Yesterday, he's singing along to himself the line "So many heroes, so many tales, give me one good reason why yours should prevail" "_So many hippos, so many tails..._"💖

submitted 18 days ago • 0 comments

My old paper (title "Quantum expander for gravitational-wave observatories") made it into xkcd! :D

submitted 19 days ago • 0 comments

My new review is out! This time on using #quantum technology for future gravitational-wave detectors. Already now we use quantum light to observe gravitational waves in LIGO & Virgo. Imagine: some of the most violent events in the Universe could only be seen if we use fragile quantum light...↓ 🧪⚛️

submitted 26 days ago • 1 comment

Lately, I'm more confortable with English than my native Russian. Except for one thing: the use of emojis. They are used so differently from what I'm used to in Russian, and I always fear srewing up with them. Have I just been nice and polite or implied hard-core sex stuff? Only time will tell!

submitted 48 days ago • 0 comments

Links to the REALLY big Tolkien threads I did a while ago

submitted 51 days ago • 1 comment

I'll add pieces of text to each block and let people assemble their own unique version of my paper.

submitted 52 days ago • 0 comments

We recently had our new paper published with a fancy name "coherent feedback for quantum expander in gravitational-wave observatories". It's special for me, since that's the first paper where I'm the PI and had full responsibility for the project. journals.aps.org/prd/abstract...

submitted 54 days ago • 1 comment

Have been off social media for several months due to several deadlines. It's an odd feeling of freedom mixed with intense fomo, and I can't say it's been particularly good or enlightening. Just missed on a bunch of interesting science pieces. I guess it's time to come back.

submitted 59 days ago • 0 comments

Love it when working on some boring simulation I get #accidental_art from the script!

submitted 350 days ago • 0 comments

All recent gravitational waves were detected using quantum squeezed light. Adaptive optics is crucial for both managing huge light powers and achieving high quantum enhancement in large interferometers. Check out our new review to learn about modern approaches to it: opg.optica.org/optica/fullt...

submitted 380 days ago • 0 comments

Our paper on using quantum light to overcome decoherence in force sensors is finally published in PRL! I wrote the first draft of the paper in 2017, and since then we did a lot work to improve the data quality and the understanding of physics. 5 years, crazy! journals.aps.org/prl/abstract...

submitted 514 days ago • 3 comments