LMP Seminar: Exploring footprints of degeneracies in non-Hermitian physics: From correlation to dynamics
LMP Seminar
- Datum: 08.10.2024
- Uhrzeit: 14:00 - 15:30
- Vortragende(r): Dr. Sharareh Sayyad
- University of Göttingen
- Ort: Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS)
- Raum: Riemannraum 1.40 & ZOOM Meeting ID: 997 1155 2453 Passcode: 771001
- Gastgeber: MPIDS / LMP
- Kontakt: golestanian-office@ds.mpg.de
Characterizing degeneracies is usually imperative in unraveling the underlying physics of various quantum phenomena. Here, understanding the reasons behind the emergence and stabilization of various degeneracies is among the critical questions to be addressed.
With the surge of interest in non-Hermitian systems in recent years, a special focus was devoted to exploring degeneracies in these systems as they host both defective and non-defective degeneracies. In this talk, I present how certain symmetries stabilize different non-Hermitian degeneracies [1,2,3]. I will show that the signature of topological degeneracies can be tracked in the systems' dynamics[4,5,6]. I will further discuss how including many-body interactions allows the emergence of new phases of matter [7,8]. If time permits, I will continue my talk by sharing how modern mathematics, beyond linear algebra, can facilitate characterizing non-Hermitian degeneracies.
[1] S. Sayyad, et al. Phys. Rev. Research 4 (2), 023130 (2022)
[2] S. Sayyad, Phys. Rev. Research 4 (4), 043213 (2022)
[3] S. Sayyad, et al. SciPost Physics 15 (5), 200 (2023)
[4] S. Sayyad, et al. Phys. Rev. Research 3 (3), 033022 (2021)
[5] S. Sayyad, et al. Phys. Rev. Research 4 (4), L042004 (2022)
[6] S. Sayyad, Phys. Rev. Research 6 (1), L012028 (2024)
[7] S. Sayyad, et al. Phy. Rev. Research 5 (2), L022046 (2023)
[8] S. Sayyad, et al. J. Phys.: Cond. Matt. 36 (18), 185603 (2024).
With the surge of interest in non-Hermitian systems in recent years, a special focus was devoted to exploring degeneracies in these systems as they host both defective and non-defective degeneracies. In this talk, I present how certain symmetries stabilize different non-Hermitian degeneracies [1,2,3]. I will show that the signature of topological degeneracies can be tracked in the systems' dynamics[4,5,6]. I will further discuss how including many-body interactions allows the emergence of new phases of matter [7,8]. If time permits, I will continue my talk by sharing how modern mathematics, beyond linear algebra, can facilitate characterizing non-Hermitian degeneracies.
[1] S. Sayyad, et al. Phys. Rev. Research 4 (2), 023130 (2022)
[2] S. Sayyad, Phys. Rev. Research 4 (4), 043213 (2022)
[3] S. Sayyad, et al. SciPost Physics 15 (5), 200 (2023)
[4] S. Sayyad, et al. Phys. Rev. Research 3 (3), 033022 (2021)
[5] S. Sayyad, et al. Phys. Rev. Research 4 (4), L042004 (2022)
[6] S. Sayyad, Phys. Rev. Research 6 (1), L012028 (2024)
[7] S. Sayyad, et al. Phy. Rev. Research 5 (2), L022046 (2023)
[8] S. Sayyad, et al. J. Phys.: Cond. Matt. 36 (18), 185603 (2024).