Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Yue, Ran"'
Higher-order nodal line semimetals represent a recently proposed topological semimetal class that harbors bulk nodal lines and features gapless hinge Fermi arc excitations, governed by the bulk-hinge correspondence. In this study, we investigate the
Externí odkaz:
http://arxiv.org/abs/2401.13443
The study of ground-state properties of the Fermi-Hubbard model is a long-lasting task in the research of strongly correlated systems. Owing to the exponentially growing complexity of the system, a quantitative analysis usually demands high computati
Externí odkaz:
http://arxiv.org/abs/2308.06700
Recently, an exotic quantum Hall ferromagnet with spin-filtered helical edge modes was observed in monolayer graphene on a high-dielectric constant substrate at moderate magnetic fields, withstanding temperatures of up to 110 Kelvin [L. Veyrat et al.
Externí odkaz:
http://arxiv.org/abs/2306.06939
We show that in two-band $s$-wave superfluids it is possible to induce quantum phase transitions (QPTs) by tuning intraband and interband $s$-wave interactions, in sharp contrast to single-band $s$-wave superfluids, where only a crossover between Bar
Externí odkaz:
http://arxiv.org/abs/2204.08650
We consider an impurity problem in a quasi-two-dimensional Fermi gas, where a spin-down impurity is immersed in a Fermi sea of N spin-up atoms. Using a variational approach and an effective two-channel model, we obtain the energies of the system for
Externí odkaz:
http://arxiv.org/abs/2109.11250
Publikováno v:
Phys. Rev. B 104, 094201 (2021)
In this work, we study the disorder effects on the bulk-boundary correspondence of two-dimensional higher-order topological insulators (HOTIs). We concentrate on two cases: (i) bulk-corner correspondence, (ii) edge-corner correspondence. For the bulk
Externí odkaz:
http://arxiv.org/abs/2106.00422
Publikováno v:
Phys. Rev. A 102, 033305 (2020)
We study the Fermi polaron problem of one mobile spin-up impurity immersed atop the bath consisting of spin-down fermions in one- and two-dimensional square lattices. We solve this problem by applying a variational approach with non-Gaussian states a
Externí odkaz:
http://arxiv.org/abs/2002.09158