Egor Babaev

Professor in Physics, father

[Egor Babaev @egorbabaev]

NMR evidence of pairing fluctuations above Tc and absence of spin magnetism in the time-reversal symmetry-breaking state of BaKFeAs, consistent with electron quadrupling https://t.co/hIN2XXlQgN

[Shanghai Jiao Tong University @sjtu1896]

A groundbreaking study from SJTU has shattered a 60-year-old paradigm in physics. Published in Science, Academician Ding Hong’s team achieved the first direct observation of quantized vortex core splitting and the formation of chiral superconducting Skyrmions.

For decades, isolating these fractional vortices was deemed impossible due to "quark confinement." By using surface engineering on an iron-based superconductor, the team successfully visualized them splitting and merging at the atomic scale.

This breakthrough brings fractional vortices from theory to reality, opening new frontiers for topological quantum computing.

#SJTU #Physics #QuantumComputing #Superconductivity #ScientificBreakthrough

[Egor Babaev @egorbabaev]

Fractionalization of the core of the quantum vortex is observed at Shanghai Jiao Tong University, following a quarter-century of debates that followed my 2001 paper https://t.co/FKJhfEEAc8

[KAW @KAWstiftelsen]

A new form of matter, based on electrons condensing in groups of four, appears to possess new and unexpected properties. Egor Babaev and his research team are mapping the new properties of this super-matter. #research #science #physics @egorbabaev
https://t.co/acM48LybBj

[KAW @KAWstiftelsen]

En ny form av materia, baserad på elektroner i grupper om fyra, ser ut att kunna ha nya och oanade förmågor. Egor Babaev och hans forskargrupp ska nu kartlägga denna supermateria och dess nya egenskaper. #forskning #vetenskap #fysik @egorbabaev
https://t.co/y5XWCJuu93

[Egor Babaev @egorbabaev]

I am happy we finished a paper with Hans and Jun-Xiao Hui on the quantum Hall system where Laughlin quasiparticle can ``fractionalize" i.e. split into fractional parts carrying arbitrary fractions of its charge and statistical angle https://t.co/Wp6qT3oLVf

[Egor Babaev @egorbabaev]

BCS theory describes electron pairing microscopically, but quadrupling is not possible within that theory. Now, the microscopic theory of the electron quadrupling condensate has been published. Congratulations to Albert Samoilenka https://t.co/8pIGQmn7S2

[Egor Babaev @egorbabaev]

Highly recommend this paper, the system has a simple Hamiltonian but a lot of novel phenomena Field theory of Borromean supercounterfluids
Anatoly Kuklov1, Leo Radzihovsky2, and Boris Svistunov3

https://t.co/1OuUCMGssX

[Egor Babaev @egorbabaev]

A recent article from the University of Virginia and Purdue on my reading list , type-1.5 superconductors for single-photon detectors https://t.co/ITctFrLMd7

[Egor Babaev @egorbabaev]

My informal introductory talk on four-electron condensates and fractionalization of flux quantum at the recent conference https://t.co/11N2OGW30a

[Egor Babaev @egorbabaev]

PhD position in in experimental physics. The topic is unconventional superconductivity that breaks time-reversal symmetry and electron quadrupling condensates https://t.co/czaeLkX7Xv

[Egor Babaev @egorbabaev]

@Jain_Physics @wolfprize Congratulations!

[Egor Babaev @egorbabaev]

A rigorous proof by high-profile mathematicians that the surface of BCS superconductor has a higher critical temperature than the bulk https://t.co/B1Da1971JY

[Egor Babaev @egorbabaev]

My experimental colleagues continue investigating electron quadrupling condensate in Ba1−xKxFe2As. This time, it was characterized through NMR. The results of the long project are posted at https://t.co/5juAeW5i4Q

[Egor Babaev @egorbabaev]

The first experimental progress toward realizing a system where Bosons are not superfluid individually, but their composites are superfluid.https://t.co/BoWIkcKC7h . Great news for the field of "higher-composites" condensation.

[Egor Babaev @egorbabaev]

Two open positions for PhD students in our group is now officially announced and we accept applications https://t.co/M0clt4blJG

[Egor Babaev @egorbabaev]

I am happy to receive from the KAW Foundation a grant of 22 million SEK (~$2.5 million) for research on electron quadrupling condensates. It was unthinkable when I was involved in starting the field 20 + years ago https://t.co/9gs2BiODMj

[Egor Babaev @egorbabaev]

https://t.co/SQzzkr0zGl

[Egor Babaev @egorbabaev]

In recent years, we worked with experimentalists on the exciting topic of new states of matter arising from electron quadrupling: a state where there is no condensate of electron pairs, but there is a condensate of electron quadruplets .

[Egor Babaev @egorbabaev]

Out of the examples that I give, one that emphasizes that no local pairing or quadrupling occurs: a fermion can be simultaneously a part of a classical field behavior in the bulk by co-flowing with other fermions or be a part of topological mode with the surface state