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5 papers · 2 filters
Non-perturbative stochastic method for driven spin-boson model
Peter P. Orth, Adilet Imambekov, Karyn Le Hur
We introduce and apply a numerically exact method for investigating the real-time dissipative dynamics of quantum impurities embedded in a macroscopic environment beyond the weak-c…
Scaling of entanglement entropy across Lifshitz transitions
Marlon Rodney, H. Francis Song, Sung-Sik Lee +2
We investigate the scaling of the bipartite entanglement entropy across Lifshitz quantum phase transitions, where the topology of the Fermi surface changes without any changes in s…
Phonon-induced topological transitions and crossovers in Dirac materials
Ion Garate
We show that electron-phonon interactions can alter the topological properties of Dirac insulators and semimetals, both at zero and nonzero temperature. Contrary to the common beli…
Magnetic ordering phenomena of interacting quantum spin Hall models
Johannes Reuther, Ronny Thomale, Stephan Rachel
The two-dimensional Hubbard model defined for topological band structures exhibiting a quantum spin Hall effect poses fundamental challenges in terms of phenomenological characteri…
Dipolar bogolons: from superfluids to Pfaffians
S. A. Parameswaran, S. A. Kivelson, R. Shankar +2
We study the structure of Bogoliubov quasiparticles, 'bogolons,' the fermionic excitations of paired superfluids that arise from fermion (BCS) pairing, including neutral superfluid…