73 citations · 297 across the 27 of their papers we have counts for
8 papers · 1 filter
Topological dipoles of quantum skyrmions
Sopheak Sorn, Jörg Schmalian, Markus Garst
Magnetic skyrmions are spatially localized whirls of spin moments in two dimension, featuring a nontrivial topological charge and a well-defined topological charge density. We demo…
Obstructed Cooper pairs in flat band systems -- weakly-coherent superfluids and exact spin liquids
Tamaghna Hazra, Nishchhal Verma, Jörg Schmalian
Superconductivity in a partially filled flat band presents a vexing conceptual hurdle because the absence of a Fermi surface precludes a weak-coupling regime where one can extend i…
Pairing at a single Van Hove point
Risto Ojajärvi, Andrey V. Chubukov, Yueh-Chen Lee +2
We show that an interacting electronic system with a single ordinary or extended Van Hove point, which crosses the Fermi energy, is unstable against triplet superconductivity. The…
Unconventional superconductivity from electronic dipole fluctuations
Grgur Palle, Jörg Schmalian
We study electron-electron Coulomb interactions in electronic systems whose Fermi surfaces possess a finite electric dipole density. Although there is no net dipole moment, we show…
Strange metal and superconductor in the two-dimensional Yukawa-Sachdev-Ye-Kitaev model
Chenyuan Li, Davide Valentinis, Aavishkar A. Patel +4
The two-dimensional Yukawa-Sachdev-Ye-Kitaev (2d-YSYK) model provides a universal theory of quantum phase transitions in metals in the presence of quenched random spatial fluctuati…
Solvable models of two-level systems coupled to itinerant electrons: Robust non-Fermi liquid and quantum critical pairing
Evyatar Tulipman, Noga Bashan, Jörg Schmalian +1
Strange metal behavior is traditionally associated with an underlying putative quantum critical point at zero temperature. However, in many correlated metals, e.g., high-Tc cuprate…
Binding zero modes with fluxons in Josephson junctions of time-reversal invariant topological superconductors
Gabriel F. Rodríguez Ruiz, Adrian Reich, Alexander Shnirman +2
We study the joint dynamics of the phase bias and the propagating Majorana fermions of the edge modes in Josephson junctions containing 2D time-reversal invariant topological s…
Odd-frequency superfluidity from a particle-number-conserving perspective
K. Thompson, U. Zülicke, J. Schmalian +2
We investigate odd-in-time - or odd-frequency - pairing of fermions in equilibrium systems within the particle-number-conserving framework of Penrose, Onsager and Yang, where super…