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 WS 2023/2024:

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

2. Room-temperature quantum optomechanics using an ultralow noise cavity (G. Huang et al., Nature 626 512-517 (2024))

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

4. Evidence for chiral supercurrent in quantum Hall Josephson junctions (H. Vignaud et al., Nature 624 545-550 (2023))

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

6. Exploring large-scale entanglement in quantum simulation (M.K. Joshi et al., Nature 624 539-544 (2023))

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

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

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

10. Chiral phonons in quartz probed by X-rays (H. Ueda et al., Nature 618, 946-950 (2023))

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

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

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

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

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

16. no longer available: Single-electron spin resonance detection by microwave photon counting (Z. Wang et al., Nature 619, 276–281 (2023))

17. Room-temperature magnetoresistance in an all-antiferromagnetic tunnel junction (Peixin Qin et al., Nature 613, 485 (2023))

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

19. Observation of the orbital Hall effect in a light metal Ti (Young-Gwan Choi et al., Nature 619, 52–56 (2023))

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

21. no longer available: Loophole-free Bell inequality violation with superconducting circuits (S. Storz et al., Nature 617, 265-270 (2023))

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

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

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

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

26. Giant spin polarization and a pair of antiparallel spins in a chiral superconductor (R. Nakajima et al., Nature 613, 479 (2023))