Hari Padmanabhan

869 posts

Hari Padmanabhan

Hari Padmanabhan

@haripadtweets

Postdoctoral researcher studying the physics of materials at Harvard

Cambridge, MA Katılım Aralık 2015
732 Takip Edilen356 Takipçiler
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
I wrote about how quantum entanglement leaves its imprint all over the behavior of certain macroscopic objects, objects that you can see with your eyes and hold in your hands - say hello to quantum magnets! cantorsparadise.com/witnessing-qua…
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Cantor’s Paradise
Cantor’s Paradise@Cantor_Paradise·
"Witnessing quantum entanglement at the macroscale" by Hari Padma ift.tt/QwHUEGv
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Dan Garisto
Dan Garisto@dangaristo·
Alright, full story up. I tried to explain a bit behind why it's hard to get ultrashort pulses of light and what exactly this years' laureates did to solve the problem. scientificamerican.com/article/this-y…
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
Ultrafast science, let's go! One of my favorite nuggets about this field: an attosecond is to a second, what a second is to the age of the universe. We live in amazing times.
The Nobel Prize@NobelPrize

BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2023 #NobelPrize in Physics to Pierre Agostini, Ferenc Krausz and Anne L’Huillier “for experimental methods that generate attosecond pulses of light for the study of electron dynamics in matter.”

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Ash Jogalekar
Ash Jogalekar@curiouswavefn·
Thread - 1: Short personal story on how fear of math and bad teachers can lead to a self-fulfilling prophecy. Maybe my experience can be helpful to teenagers struggling with math. I "survived" the experience but lost valuable time
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
Check this out for a lucid description (~37:17) of ‘renormalization’ and ‘effective field theories’ - ideas with roots in condensed matter physics (good old magnetism), but with profound implications on our understanding of nature at its deepest level. open.spotify.com/episode/2jsFzT…
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Noah Smith 🐇🇺🇸🇺🇦🇹🇼
OK so LK99 wasn't a big breakthrough. What ARE some of the most important confirmed recent advances in materials science?
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
@calebhuwm @schulzb589 @Noahpinion This is a nice study, and a neat result! As for high-temperature superconductivity, the complexity of these phases (e. g. cuprates) notwithstanding, I have to say I don’t see a direct connection to thermal expansion.
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
h/t to Tony Leggett (see chapter on BCS superconductivity in the textbook ‘Quantum Liquids’ for more) who has likely forgotten more about superconductivity than most of us will ever know. en.wikipedia.org/wiki/Anthony_J…
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
Is LK-99 superconducting? We don’t know yet, but if it is, it likely has electronic pairing mediated by something springy.
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Hari Padmanabhan
Hari Padmanabhan@haripadtweets·
On how electrons, which usually repel each other, pair up and give rise to superconductivity. There’s a neat bit of classical physics and high school algebra at the heart of it all – a thread that connects all superconductors, from the OGs to the alleged new kids on the block. 🧵
Hari Padmanabhan@haripadtweets

I wrote a thing! It features ducklings, Cooper pairs, wave mechanics, and because I couldn't resist it, some mediocre AI-generated art.. hari-padmanabhan.medium.com/electron-pairs…

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