[Landau ITP Seminars] [ITP Staff] Thursday 22.05.2025 - ITP/CAS Colloquium

[Stanislav Apostolov]

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ZOOM Meeting ID: 825 1553 1170
Passcode: 654432

info+seminars at itp.ac.ru писал(а) 2025-05-20 10:02:
> Уважаемые коллеги!
> 
> На онлайн коллоквиум по теоретической физике в четверг 22.05 будут 
> заслушаны 2 доклада:
> 
> 1) 10:00:00 по московскому времени: Yakov Fominov (L.D. Landau 
> Institute of Theoretical Physics Russian Academy of Sciences)
> Superconducting Diode Effect
> 
> In this talk, I will discuss the rapidly developing field of 
> nonreciprocal effects in superconducting transport, also known as the 
> superconducting diode effect. The essence of this phenomenon lies in 
> the asymmetry of a system’s properties when a supercurrent flows in 
> opposite directions. Such an effect requires the simultaneous breaking 
> of time-reversal and inversion symmetries. The underlying physical 
> mechanisms can vary significantly, including effects of magnetic (and, 
> more specifically, exchange) fields, spin-orbit interactions, and 
> geometric asymmetry of the system. These effects can lead to 
> nonreciprocal charge transport both in systems homogeneous along the 
> current direction and in Josephson junctions.
> 
> BIOGRAPHY
> 
> Prof. Yakov Fominov holds two PhDs in Theoretical Physics — one from 
> the Kapitza Institute (Russia, 2003) and another from the University of 
> Twente (Netherlands, 2003) — as well as a Doctor of Physics and 
> Mathematics degree from the Landau Institute (2019). Since 2005, he has 
> been a permanent member of the Landau Institute, where he currently 
> serves as Deputy Director. Since 2023, he has also headed the Chair for 
> Problems in Theoretical Physics (Gor’kov Theory Group) at the Moscow 
> Institute of Physics and Technology. His research focuses on the 
> superconducting proximity effect in hybrid structures (including normal 
> and ferromagnetic metals), the Josephson effect in mesoscopic 
> junctions, odd-frequency superconductivity, and superconducting spin 
> valves.
> 
> 
> 
> 2) 11:00:00 по московскому времени: Jiang-Ping Hu (Institute of Physics 
> Chinese Academy of Sciences)
> Time Reversal Symmetry Breaking in Kagome Lattices
> 
> In this talk, I will discuss quantum states in Kagome lattices with the 
> time reversal symmetry breaking. Both theory and recent experimental 
> progress will be reviewed. A brief review of this type of states will 
> be given for cuprates and Kagome lattice superconductors. We will 
> discuss a specific model to show the existence of loop current states 
> which break the time reversal symmetry as ground states. In particular, 
> we will address the superconducting diode effect can be used to probe 
> such quantum states.
> 
> BIOGRAPHY
> 
> Prof. Jiang-Ping Hu is currently a researcher and the Deputy Director 
> of the Institute of Physics, Chinese Academy of Sciences. He received 
> his BS from Peking University in 1994, MS from the Institute of 
> Theoretical Physics of the Chinese Academy of Sciences in 1997 and PhD 
> from Stanford University in 2002. His main research interests are 
> theoretical condensed matter physics. He has made seminal contributions 
> to topological physics, high-temperature superconductivity, and 
> strongly correlated electron theory, with more than 280 publications 
> and an H-index of 85. He was selected to be a Fellow of the American 
> Physical Society in 2018, and was awarded the Zhou Peiyuan Prize for 
> Physics in 2019, a New Stone Researcher in 2023.
> 
> 
> 
> Zoom meeting ID: 890 7187 2369
> Пароль: 544845
> 
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