Program

Topological quantum matter: From superfluid 3He to modern  materials (TQM)

In October 2022 there is 50 years of publication of discovery of  superfluid 3He and 80 years anniversary of Matti Krusius, who led world-top-level research on superfluid 3He at Helsinki University of Technology and Aalto University for many years. Superfluid 3He was the first discovered topological quantum material which started the currently booming field where application of topological methods in condensed matter physics is used to construct new materials and devices. 

The symposium is targeted to explore and strengthen the link between research on superfluid 3He and other topological systems and to celebrate Matti’s contribution to the field.

Friday, November 4

9:00 – 9:20 Opening [pdf]

Session 1
Chair: Vladimir Eltsov
9:20 – 9:50 Grigori Volovik: 3He universe 2022 [pdf]

9:50 – 10:20 George Pickett: Detecting, and measuring the mobility of, excitations at the boundary of the topological superfluid 3He [pdf]

10:20 – 10:50 Pertti Hakonen: Towards composite quantum matter [pdf]

10:50 – 11:10 Coffee break

Session 2
Chair: Bill Halperin
11:10 – 11:40 Jukka Pekola: Quantum heat transport in superconducting circuits [pdf]

11:40 – 12:10 Bernard Pla├žais: QED in the laboratory: the Schwinger effect in graphene [pdf]

12:10 – 12:40 Yasushi Kondo: Aharanov-Anandan geometric phase based precise quantum control [pdf]

12:40 – 14:00 Lunch break

Session 3
Chair: Erkki Thuneberg
14:00 – 14:30 Bill Halperin: Odd parity superconductivity: 3He and UPt3 [pdf]

14:30 – 15:00 Petri Heikkinen: Topological superfluid 3He under mesoscopic confinement [pdf]

15:00 – 15:30 Vladimir Dmitriev: New topological phases of superfluid 3He stabilized by nanostructured confinement (remote) [pdf]

15:30 – 16:00 Coffee break / mini-reception

16:00 – 17:30 Not-so-scientific session: Recollections of Matti’s colleagues and friends: Mikko Paalanen, Simo Jaakkola, Peter Skyba, Rich Haley, Yuriy Bunkov (remote), Antti Finne (remote), George Pickett.

Saturday, November 5

Session 4
Chair: Pertti Hakonen
9:30 – 10:00 Samuli Autti: Superfluid 3He universe in motion: from vortices to time crystals [pdf]

10:00 – 10:30 Yuriy Bunkov: Topological qubit based on magnon Bose-Einsten condensate (remote) [pdf]

10:30 – 11:00 Peter Skyba: BEC of magnons in superfluid 3He-B as a quantum resonant amplifier [pdf]

11:00 – 11:30 Coffee/snack break

Session 5
Chair: Rich Haley
11:30 – 12:00 Ladislav Skrbek: On transition to turbulence in helium superfluids [pdf]

12:00 – 12:30 Wilfried Schoepe: From liquid helium to Bose-Einstein condensates: Vortex shedding and ion transport [pdf]

12:30 – 13:00 Erkki Thuneberg: The difference between semiconductor and superconductor [pdf]

13:00 – 13:30 Sergei Vasiliev: Towards experiments with hydrogen atoms at rest [pdf]

13:30 – 13:50 Closing