Mikhail Korobko
@mkorobko.bsky.social
Quantum physicist: quantum optics, gravitational-wave detectors and foundations of quantum mechanics | staff scientist @ Uni Hamburg | member of LIGO
Reposted by Mikhail Korobko
What if the measurement problem isn't about explaining how the classical world emerges from the quantum world...
...but about what happens when quantum systems interact with something that's already classical?
Turns out, the collapse postulate + Born rule emerge!
scirate.com/arxiv/2510.0...
🧪⚛️🧵1/5
...but about what happens when quantum systems interact with something that's already classical?
Turns out, the collapse postulate + Born rule emerge!
scirate.com/arxiv/2510.0...
🧪⚛️🧵1/5
A one-world interpretation of quantum mechanics
The measurement problem is the issue of explaining how the objective classical world emerges from a quantum one. Here we take a different approach. We assume that there is an objective classical syste...
scirate.com
October 13, 2025 at 7:49 AM
What if the measurement problem isn't about explaining how the classical world emerges from the quantum world...
...but about what happens when quantum systems interact with something that's already classical?
Turns out, the collapse postulate + Born rule emerge!
scirate.com/arxiv/2510.0...
🧪⚛️🧵1/5
...but about what happens when quantum systems interact with something that's already classical?
Turns out, the collapse postulate + Born rule emerge!
scirate.com/arxiv/2510.0...
🧪⚛️🧵1/5
Reposted by Mikhail Korobko
What a difference a decade makes! Announcing the clearest #GravitationalWave detection ever #GW250114
youtu.be/2XmZ8-XQ9jU
📓: doi.org/10.1103/kw5g...
🔭🧪⚛️☄️ #O4IsHere
youtu.be/2XmZ8-XQ9jU
📓: doi.org/10.1103/kw5g...
🔭🧪⚛️☄️ #O4IsHere
GW250114 – The Clearest of Chirps
YouTube video by LIGO Virgo KAGRA
youtu.be
September 10, 2025 at 4:20 PM
What a difference a decade makes! Announcing the clearest #GravitationalWave detection ever #GW250114
youtu.be/2XmZ8-XQ9jU
📓: doi.org/10.1103/kw5g...
🔭🧪⚛️☄️ #O4IsHere
youtu.be/2XmZ8-XQ9jU
📓: doi.org/10.1103/kw5g...
🔭🧪⚛️☄️ #O4IsHere
Reposted by Mikhail Korobko
Results from the first part of our fourth LIGO @egovirgo.bsky.social KAGRA observing run are out today!
We're pleased to share the largest catalog of gravitational-wave observations with more discoveries of black holes and neutron stars
📰 arxiv.org/abs/2508.18082
🔭🧪⚛️☄️ #GWTC4
We're pleased to share the largest catalog of gravitational-wave observations with more discoveries of black holes and neutron stars
📰 arxiv.org/abs/2508.18082
🔭🧪⚛️☄️ #GWTC4
August 26, 2025 at 8:27 AM
Results from the first part of our fourth LIGO @egovirgo.bsky.social KAGRA observing run are out today!
We're pleased to share the largest catalog of gravitational-wave observations with more discoveries of black holes and neutron stars
📰 arxiv.org/abs/2508.18082
🔭🧪⚛️☄️ #GWTC4
We're pleased to share the largest catalog of gravitational-wave observations with more discoveries of black holes and neutron stars
📰 arxiv.org/abs/2508.18082
🔭🧪⚛️☄️ #GWTC4
Reposted by Mikhail Korobko
That's a wrap!
We've had hundreds of talks from scientists from all across the world over the last two weeks, but it's finally time to say goodbye.
On behalf of everyone on the organising committee, thank you for coming!
#GR22Amaldi16
We've had hundreds of talks from scientists from all across the world over the last two weeks, but it's finally time to say goodbye.
On behalf of everyone on the organising committee, thank you for coming!
#GR22Amaldi16
July 18, 2025 at 4:51 PM
That's a wrap!
We've had hundreds of talks from scientists from all across the world over the last two weeks, but it's finally time to say goodbye.
On behalf of everyone on the organising committee, thank you for coming!
#GR22Amaldi16
We've had hundreds of talks from scientists from all across the world over the last two weeks, but it's finally time to say goodbye.
On behalf of everyone on the organising committee, thank you for coming!
#GR22Amaldi16
Gravitational-wave detectors currently measure signals at around 10-1000 Hz. It is not widely known, but they are also quite sensitive to GW signals at much higher frequencies — up to GHz. We don't know whether there are signals there, but wouldn't that be fun?! We wrote a paper about that!
🧪 🔭
🧪 🔭
July 17, 2025 at 2:33 PM
Gravitational-wave detectors currently measure signals at around 10-1000 Hz. It is not widely known, but they are also quite sensitive to GW signals at much higher frequencies — up to GHz. We don't know whether there are signals there, but wouldn't that be fun?! We wrote a paper about that!
🧪 🔭
🧪 🔭
Reposted by Mikhail Korobko
Today at #GR24Amaldi16, the GWECS team is presenting on supporting early career researches.
GWECS is Gravitational Wave Early Career Scientists - find out more at: gwecs.org
GWECS is Gravitational Wave Early Career Scientists - find out more at: gwecs.org
July 15, 2025 at 10:30 AM
Today at #GR24Amaldi16, the GWECS team is presenting on supporting early career researches.
GWECS is Gravitational Wave Early Career Scientists - find out more at: gwecs.org
GWECS is Gravitational Wave Early Career Scientists - find out more at: gwecs.org
Reposted by Mikhail Korobko
The story of our first discovery of two merging black holes
youtu.be/0lUxk8yxaNY
A documentary by Kai Staats
#BlackHoleWeek 🔭🧪⚛️
youtu.be/0lUxk8yxaNY
A documentary by Kai Staats
#BlackHoleWeek 🔭🧪⚛️
LIGO: Detection | A film by Kai Staats
YouTube video by LIGO Virgo KAGRA
youtu.be
May 7, 2025 at 9:02 PM
The story of our first discovery of two merging black holes
youtu.be/0lUxk8yxaNY
A documentary by Kai Staats
#BlackHoleWeek 🔭🧪⚛️
youtu.be/0lUxk8yxaNY
A documentary by Kai Staats
#BlackHoleWeek 🔭🧪⚛️
Reposted by Mikhail Korobko
Our recent Collaboration meeting saw lots of exciting science being shared. Congratulations to our Poster Prize winners for their excellent presentations:
🧑🏫 Theory: Lorenzo Pompili, MPI Gravitational Physics
🧑💻 Data analysis: Nicole Khusid, Stony Brook
🧑🔬 Experiment: Audréanne Matte-Landry, Montréal
🧑🏫 Theory: Lorenzo Pompili, MPI Gravitational Physics
🧑💻 Data analysis: Nicole Khusid, Stony Brook
🧑🔬 Experiment: Audréanne Matte-Landry, Montréal
April 9, 2025 at 9:07 AM
Our recent Collaboration meeting saw lots of exciting science being shared. Congratulations to our Poster Prize winners for their excellent presentations:
🧑🏫 Theory: Lorenzo Pompili, MPI Gravitational Physics
🧑💻 Data analysis: Nicole Khusid, Stony Brook
🧑🔬 Experiment: Audréanne Matte-Landry, Montréal
🧑🏫 Theory: Lorenzo Pompili, MPI Gravitational Physics
🧑💻 Data analysis: Nicole Khusid, Stony Brook
🧑🔬 Experiment: Audréanne Matte-Landry, Montréal
I'm really happy to have been awarded the Rudolf Kaiser Prize in experimental physics! I got it for my experiments enhancing optical force sensors with quantum squeezed light generated inside the sensors themselves.
Feeling motivated to get back to work and do some more fun science!
Feeling motivated to get back to work and do some more fun science!
March 15, 2025 at 6:17 PM
I'm really happy to have been awarded the Rudolf Kaiser Prize in experimental physics! I got it for my experiments enhancing optical force sensors with quantum squeezed light generated inside the sensors themselves.
Feeling motivated to get back to work and do some more fun science!
Feeling motivated to get back to work and do some more fun science!
Reposted by Mikhail Korobko
I spent almost 2 hours painstakingly copying the orbits of all 128 Saturnian moons from the announcement MPEC and reformatting them for visualization...
Behold, here are the orbits of ALL 128 MOONS OF SATURN. This isn't just a moon system—it's a literal asteroid belt around Saturn! 🧪🔭☄️
Behold, here are the orbits of ALL 128 MOONS OF SATURN. This isn't just a moon system—it's a literal asteroid belt around Saturn! 🧪🔭☄️
March 12, 2025 at 12:05 AM
I spent almost 2 hours painstakingly copying the orbits of all 128 Saturnian moons from the announcement MPEC and reformatting them for visualization...
Behold, here are the orbits of ALL 128 MOONS OF SATURN. This isn't just a moon system—it's a literal asteroid belt around Saturn! 🧪🔭☄️
Behold, here are the orbits of ALL 128 MOONS OF SATURN. This isn't just a moon system—it's a literal asteroid belt around Saturn! 🧪🔭☄️
Reposted by Mikhail Korobko
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
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
Comment on "InAs-Al hybrid devices passing the topological gap protocol", Microsoft Quantum, Phys. Rev. B 107, 245423 (2023)
The topological gap protocol (TGP) is presented as "a series of stringent experimental tests" for the presence of topological superconductivity and associated Majorana bound states. Here, we show that...
arxiv.org
February 28, 2025 at 6:32 AM
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
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
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!
🔭🧪
🔭🧪
February 25, 2025 at 1:14 PM
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!
🔭🧪
🔭🧪
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
February 20, 2025 at 9:33 AM
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
Reposted by Mikhail Korobko
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...
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...
RETRACTED ARTICLE: Quantized Majorana conductance - Nature
In a step towards topological quantum computation, a quantized Majorana conductance has been demonstrated for a semiconducting nanowire coupled to a superconductor.
www.nature.com
February 19, 2025 at 5:19 PM
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...
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...
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..._"💖
"_So many hippos, so many tails..._"💖
February 13, 2025 at 7:47 AM
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..._"💖
"_So many hippos, so many tails..._"💖
My old paper (title "Quantum expander for gravitational-wave observatories") made it into xkcd! :D
February 12, 2025 at 9:05 PM
My old paper (title "Quantum expander for gravitational-wave observatories") made it into xkcd! :D
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...↓
🧪⚛️
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...↓
🧪⚛️
February 5, 2025 at 10:06 PM
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...↓
🧪⚛️
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...↓
🧪⚛️
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!
January 14, 2025 at 2:04 PM
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!
Reposted by Mikhail Korobko
Links to the REALLY big Tolkien threads I did a while ago
Jag minns fortfarande med välbehag hur samme @mytholder.bsky.social för drygt fyra år sen, fast då på twitter, gjorde några extremt underhållande och intressanta trådar på samma tema. Del 1:
Thread by @mytholder on Thread Reader App
@mytholder: So, for various reasons, I'm rereading the HISTORY OF MIDDLE-EARTH books about the writing of Lord of the Rings. They're fascinating (for certain values of fascinating); what I'm going to ...
threadreaderapp.com
January 11, 2025 at 12:13 PM
Links to the REALLY big Tolkien threads I did a while ago
I'll add pieces of text to each block and let people assemble their own unique version of my paper.
Don't forget to include a playable Tetris in the PDF of your next arXiv submission!
th0mas.nl/downloads/pd...
th0mas.nl/downloads/pd...
th0mas.nl
January 10, 2025 at 11:20 AM
I'll add pieces of text to each block and let people assemble their own unique version of my paper.
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...
journals.aps.org/prd/abstract...
January 8, 2025 at 9:24 AM
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...
journals.aps.org/prd/abstract...
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.
January 3, 2025 at 3:38 PM
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.
Love it when working on some boring simulation I get #accidental_art from the script!
March 18, 2024 at 1:16 PM
Love it when working on some boring simulation I get #accidental_art from the script!
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...
opg.optica.org/optica/fullt...
Optica Publishing Group
opg.optica.org
February 17, 2024 at 12:06 PM
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...
opg.optica.org/optica/fullt...
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...
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...
October 6, 2023 at 10:18 AM
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...
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...