Jonathan Ruhman

Theory of Quantum Condensed Matter

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Research interest:

We are a theoretical research group in the field of quantum condensed matter physics. We are located at the Physics department of Bar Ilan university, Israel, where we currently focus on the following problems:

- Superconductivity in low-density systems (SrTiO3, topological semimetals, etc.) - microscopics and phenomenological theory
- Dynamics of quantum information in chaotic many-body systems
- Topological superconductivity.
- Transport in strongly coupled liquids
- vdW heterostrcutres, twisted bilayers etc.

For more details about our research topics click here.

Recent publications (for all pubs click here):

- arXiv:2308.05150 The field theory of a superconductor with repulsion Amir Dalal, Jonathan Ruhman and Vladyslav Kozii
- arXiv:2304.10583 A mechanism for π phase shifts in Little-Parks experiments: application to 2H-TaS2 intercalated with chiral molecules and to 4Hb-TaS2 Mark H. Fischer, Patrick A. Lee, Jonathan Ruhman
- arXiv:2209.02733 A theory of criticality for quantum ferroelectric metals Avraham Klein, Vladyslav Kozii, Jonathan Ruhman, Rafael M Fernandes (Published in PRB)
- arXiv:2208.13798 Evidence of a two-component order parameter in 4Hb-TaS2 in the Little-Parks effect A Almoalem, I Feldman, M Shlafman, YE Yaish, MH Fischer, M Moshe, Jonathan Ruhman and Amit Kanigel
- arXiv:2206.07730 Magnetic memory and spontaneous vortices in a van der Waals superconductor, Eylon Persky, Anders V. Bjørlig, Irena Feldman, Avior Almoalem, Ehud Altman, Erez Berg, Itamar Kimchi, Jonathan Ruhman, Amit Kanigel, Beena Kalisky (Not necessarily wrong although it is published in Nature)