Within the seminar, students give talks on current topics in condensed matter physics. The seminar aims to give a closer look at new developments in condensed matter physics and to show how these developments can be transferred into applications. The seminar focuses on spin electronics, spin dynamics, solid-state quantum information processing, the physics of solid-state nanostructures, and high temperature superconductivity. These topics are in the focus of several research projects of WMI and collaborative research programs in the Munich area (e.g. the Excellence Cluster "Munich Center for Quantum Science and Technology (MCQST)", the Munich Quantum Valley e.V., as well as several BMBF and EU projects).

The seminar is relevant for the special courses on Quantum Science and Technology, Superconductivity and Low Temperature Physics as well as on Magnetism and Spintronics. It is suitable for bachelor students in the 5th semester or higher and for master students.

Schedule

List of open topics for seminar talks in SS 2024:

1. Efficient Microwave Photon-to-Electron Conversion in a High-Impedance Quantum Circuit (O. Stanisavljević et al., Physical Review Letters 133, 076302 (2024))

2. Phonon chirality from impurity scattering in the antiferromagnetic phase of Sr₂IrO₄ (Amirreza Ataei et al., Nature Physics 20, 585 (2024))

3. Direct observation of altermagnetic band splitting in CrSb thin films (Sonka Reimers et al., Nature Commun. 15, 2116 (2024))

4. Electrical control of magnetism by electric field and current-induced torques (Albert Fert et al., Reviews of Modern Physics 96, 0150015 (2024))

5. All-electrical skyrmionic magnetic tunnel junction (Shaohai Chen et al., Nature 627, 522-527 (2024))

6. Quantum spin nematic phase in a square-lattice iridate (Hoon Kim et al., Nature 625 264-269 (2024))

7. Finite-momentum Cooper pairing in proximitized altermagnets (Song-Bo Zhang et al., Nature Commun. 15, 1801 (2024))

8. Observation and control of hybrid spin-wave–Meissner-current transport modes (M. Borst et al., Science 382 430-434 (2023))

9. Spinon Heat Transport in the Three-Dimensional Quantum Magnet PbCuTe2O6 (Xiaochen Hong et al., Phys. Rev. Lett. 131, 256701 (2023))

10. Quantum oscillations of the quasiparticle lifetime in a metal (N. Huber et al., Nature 621, 276-281 (2023))

11. A quantum electromechanical interface for long-lived phonons (A. Bozkurt et al., Nature Physics 19 1326-1332 (2023))

12. Quantum advantage in microwave quantum radar (R. Assouly et al., Nature Physics 19, 1418-1422 (2023))

13. Microwave Fluorescence Detection of Spin Echoes (E. Billaud et al., Phys. Rev. Lett. 131, 100804 (2023))

14. Fluctuation-enhanced phonon magnetic moments in a polar antiferromagnet (F. Wu et al., Nature Physics (2023))

15. Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten (T.S. Seifert et al., Nature Nanotechnology (2023))

16. Observation of Spin-Wave Moiré Edge and Cavity Modes in Twisted Magnetic Lattices (Hanchen Wang et al., Phys. Rev. X 13, 021016 (2023))

17. Proximity superconductivity in atom-by-atom crafted quantum dots (L. Schneider et al., Nature 621, 60-65 (2023))

18. Indistinguishable telecom band photons from a single Er ion in the solid state (S. Ourari et al., Nature 620, 977-981 (2023))

19. Millisecond Coherence in a Superconducting Qubit (Aaron Somoroff et al., Phys. Rev. Lett. 130, 267001 (2023))

20. Beating the break-even point with a discrete-variable-encoded logical qubit (Zhongchu Ni et al., Nature 616, 56-60 (2023))

21. Macroscopic Quantum Test with Bulk Acoustic Wave Resonators (Björn Schrinski et al., Phys. Rev. Lett. 130, 133604 (2023))

22. On-demand directional microwave photon emission using waveguide quantum electrodynamics (Bharath Kannan et al., Nature Physics 19, 394 (2023))

23. Nonlinear multi-frequency phonon lasers with active levitated optomechanics (Tengfang Kuang et al., Nature Physics 19, 414 (2023))

24. Cavity-mediated long-range interactions in levitated optomechanics (J. Vijayan et al., Nature Physics 20, 829 (2024))

25. Quantum control of a cat qubit with bit-flip times exceeding ten seconds (U. Reglade et al., Nature 629, 778 (2024))

26. One-dimensional proximity superconductivity in the quantum Hall regime (J. Barrier et al., Nature 628, 741 (2024))

27. Persistent magnetic coherence in magnets (T. Makiuchi et al., Nature Materials 23, 627-632 (2024))

28. Tunable Inductive Coupler for High-Fidelity Gates Between Fluxonium Qubits (H. Zhang et al., PRX Quantum 5, 020326 (2024))