TTQM2022

Trends in the Theory of Quantum Materials 2022
Oct. 31 - Nov. 2, 2022
ZurichWorkshop Program
Siemens Auditorium - ETH Hönggerberg HIT E51

Monday8:50 - 9:00
9:00-11:40
09:00-9:30

Opening
Non-equilibrium and Floquet systems
chair: Mark Fischer
Dmitry Abanin
Influence matrix approach to many-body dynamics and quantum impurity models

09:30 - 10:00 Hiroshi Shinaoka
Multiscale space-time ansatz for response functions of quantum systems

10:00 - 10:30 Coffee break
10:30- 11:00 Norio Kawakami
Fate of Topological Edge States in Nonunitary/Nonlinear Floquet Systems

11:00-11:20 Rui Lin
Dissipation-engineered family of nearly dark states in many-body cavity-atom systems

11:20-11:40 Kazuki Yamamoto
Universal properties of dissipative Tomonaga-Luttinger liquids with and without internal symmetry

11:40-14:00 Lunch break / Posters & Discussion
14:00-15:00 Time dependent systems
chair: Frederic Mila
14:00-14:30 Hirokazu Tsunetsugu
Triple-q partial orders of electric quadrupoles in correlated materials

14:30-15:00 Philipp Werner
Nonthermal electronic orders

15:00-15:30 Coffee break
15:30-16:50 Topological systems15:30-15:50 Ömer Aksoy
Elementary derivation of the stacking rules of invertible fermionic topological phases in one dimension

15:50-16:10 Keita Omiya
Hidden projector embedding in the Affleck-Kennedy-Lieb-Tasaki model and the PXP model

16:10-16:30 Martina Soldini
Building crystalline topological superconductors from Shiba lattices

16:30-16:50 Loïc Herviou
Possible restoration of particle-hole symmetry in the 5/2 Quantized Hall State at small magnetic field

16:50-19:00 Poster Session & Discussion

Tuesday9:00-11:40
9:00-9:30

Quantum Spin Systems and Correlated Electron Systemschair: Markus Müller
Christoph Bruder
Quantum synchronization

9:30-10:00

Shin Miyahara
Theory of absorption in the frustrated 2D spin system SrCu 2 (BO 3 ) 2

10:00-10:30 Coffee break
10:30-11:00 Shintaro Hoshino
Spin-orbital dynamics of localized electrons

11:00-11:20 Olivier GauthéThermal Ising Transition in the Spin-1/2 J 1 −J 2 Heisenberg Model

11:20-11:40 Johannes Motruk
Kagome chiral spin liquid in transition metal dichalcogenide moiré bilayers

11:40-14:00 Lunch break / Posters & Discussion
14:00-16:40 Superconductivity
chair: Titus Neupert
14:00-14:30 Aline Ramires
Nonunitary Superconductivity in Complex Quantum Materials

14:30-15:00 Hikaru Watanabe
Nonreciprocal property and resultant optical response of superconductors

15:00-15:30 Coffee break
15:30-16:00 Naoto Tsuji
Nonlinear terahertz spectroscopy of superconductors: Higgs mode and beyond

16:00-16:20 Kosuke Nogaki
Topological strongly correlated superconductor CeRh 2 As 2

16:20-16:40 Rikuto Oiwa
Phonon-Mediated Spin-Triplet Superconductivity in Chiral Crystals

16:40-18:30 Poster Session & Discussion
18:30-21:00 Banquet

Wednesday
9:00-10:109:00-9:30

Multiferroics
chair: Nicola Spaldin
Hiroaki Kusunose
Microscopic investigation of chiral crystals

9:30-9:50

Tomoki Hirosawa
Magnetoelectric Cavity Magnonics in Skyrmion Crystals

9:50-10:10

Sayantika Bhowal
Magnetoelectric classification of Skyrmions

10:10-10:40 Coffee break
10:40-12:00 Topological systems
10:40-11:10 Yasuhiro Hatsugai
Topological pump of correlated systems

11:10-11:40 Akira Furusaki

Topology of gapless and gapped phases of quantum many-body systems

11:40-12:00 Masataka Kawano
Sine-square deformed mean-field theory

12:00-14:00 Lunch break / Posters & Discussion
14:00-15:50 2D and multilayered Systems
chair: Christopher Mudry
14:00-14:20 Yifei Guan
Electronic transport in graphene with out-of-plane disorder

14:20-14:40 Glenn Wagner
Skyrmions in twisted bilayer graphene

14:40-15:00 Ikuma Tateishi
Theoretical study of twisted bilayer Bi2(Te,Se)3

15:00-15:20 Changming Yue
Doping asymmetry and layer-selective metal-insulator transition in trilayer K 3+x C 60

15:20-15:50 Masaki Oshikawa
Unified framework on conductivities as a response to the time-dependent gauge field

15:50

Closing