colloquium, Friday, October 25, 2019, , 11:30 am Yuval Gefen (Weizmann Institute of Science, Israel) Physics at the Edge of a QHE setting The structure of the edge of a QHE edge is constrained, but not dictated, by the topology of the bulk. Particularly interesting is the class of holeconjugate fractional QH states. For such states the edge hosts counterpropagating modes that are responsible for quantized electrical and thermal conductance. In the coherent quantum limit renormalized edge modes emerge, which may involve neutral modes with nontrivial exchange statistics. I will discuss the behavior of topologyinfluenced transport coefficient both in the coherent and the fully equilibrated regimes, topological classification of nonequilibrium shot noise, and the relation to recent experiments. 
Scientific Council of the Landau Institute, Friday, October 25, 2019, Landau Institute, 3:00 pm Yan V. Fyodorov (Dept. of Mathematics, King’s College London) Zeroes of Smatrix entries and random 'antilasing' Motivated by recent experimental interest in 'random antilasing' (e.g. K. Pichler et al. Nature 567, 351 (2019)) I consider manifestations of zeroes of scattering matrices in wavechaotic cavities.
In particular, I will introduce the notion of Reflection Time Difference playing the same role for the Smatrix zeroes as the Wigner time delay plays for the Smatrix poles, and a possibility of its experimental measurement.
I will then discuss how statistics of complex zeroes of scattering matrix entries can be described in the framework of RMTbased model of resonance scattering. 
Laboratory building, room 122
Moscow Institute of Physics and Technology
Dolgoprudny, Russia
contact email address: nanotheory@phystech.edu (head M.V.Feigel'man, deputy head I.V.Zagorodnev)
Research topics


Scientific Council of the Landau Institute, Friday, October 11, 2019, Landau Institute, 11:30 am Ya.V. Fominov Konferentsiya NANO2019: Limits of Nanoscience and Nanotechnologies Otchet ob uchastii v konferentsii "NANO2019: Limits of Nanoscience and Nanotechnologies" (Kishinev, Moldaviya). 
Scientific Council of the Landau Institute, Friday, October 11, 2019, Landau Institute, 11:30 am Ya.V. Fominov Sverkhprovodyashchie tripletnye spinovye klapany tipa FFS so splavom Geislera v kachestve odnogo iz ferromagnitnykh sloev Provedeno teoreticheskoe soprovozhdenie novoi serii eksperimentov po izucheniyu effekta sverkhprovodyashchego tripletnogo spinovogo klapana v sisteme tipa FFS (gde F — ferromagnetik, S — sverkhprovodnik). Effekt sostoit v tom, chto kriticheskaya temperatura T_{c} sistemy zavisit ot vzaimnoi orientatsii namagnichennostei dvukh ferromagnetikov. V eksperimente v kachestve srednego ili vneshnego F sloya byl vzyat splav Geislera Co_{2}Cr_{1x}Fe_{x}Al, magnitnye svoistva kotorogo zaviseli ot uslovii prigotovleniya. Dlya ob'yasneniya poluchennykh rezul'tatov byla sformulirovana teoriya, uchityvayushchaya proizvol'nye obmennye polya F sloev i proizvol'nye parametry granits v ramkakh kvaziklassiki v diffuznom predele.
