Explore the words cloud of the FLATOPS project. It provides you a very rough idea of what is the project "FLATOPS" about.
The following table provides information about the project.
AALTO KORKEAKOULUSAATIO SR
|Coordinator Country||Finland [FI]|
|Total cost||191˙325 €|
|EC max contribution||191˙325 € (100%)|
1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
|Duration (year-month-day)||from 2016-04-01 to 2018-03-31|
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|1||AALTO KORKEAKOULUSAATIO SR||FI (ESPOO)||coordinator||191˙325.00|
Flat bands allow to increase the critical temperature of the superconducting transition thanks to their high density of states. However a characterization of the flat bands that support a finite supercurrent is open. In some cases a nonzero Chern number, a topological invariant of the band structure, ensures a finite superfluid mass density. This tantalizing relation between topology and superfluidity is novel and unexplored. My aim is to characterize superfluidity in lattice systems with flat bands that have different symmetries, lattice structures, dimensionality, interparticle interactions and possess different topological invariants, in order to provide a general picture of which ones are potentially useful as a superconductor with high critical temperature. Whereas mean-field (BCS) theory can provide an essential qualitative understanding and a transparent link to topological properties, I plan to use more reliable methods such as Density Matrix Renormalization Group (DMRG) in 1D and Dynamical Mean Field Theory (DMFT) in 2D and 3D. The ideal platform to test the theoretical predictions are ultracold gases, but I expect to provide useful results also for multiband superconductors, topological media, carbon-based superconductors, Quantum Hall systems and high-Tc superconductors.
|year||authors and title||journal||last update|
Long Liang, Sebastiano Peotta, Ari Harju, PÃ¤ivi TÃ¶rmÃ¤
Wave-packet dynamics of Bogoliubov quasiparticles: Quantum metric effects
published pages: 64511, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.064511
|Physical Review B 96/6||2019-06-13|
Kukka-Emilia Huhtinen, Marek Tylutki, Pramod Kumar, Tuomas I. Vanhala, Sebastiano Peotta, PÃ¤ivi TÃ¶rmÃ¤
Spin-imbalanced pairing and Fermi surface deformation in flat bands
published pages: 214503, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.214503
|Physical Review B 97/21||2019-06-13|
Murad Tovmasyan, Sebastiano Peotta, PÃ¤ivi TÃ¶rmÃ¤, Sebastian D. Huber
Effective theory and emergent SU ( 2 ) symmetry in the flat bands of attractive Hubbard models
published pages: 245149, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.94.245149
|Physical Review B 94/24||2019-06-13|
Long Liang, Tuomas I. Vanhala, Sebastiano Peotta, Topi Siro, Ari Harju, PÃ¤ivi TÃ¶rmÃ¤
Band geometry, Berry curvature, and superfluid weight
published pages: 24515, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.95.024515
|Physical Review B 95/2||2019-06-13|
Aleksi Julku, Sebastiano Peotta, Tuomas I. Vanhala, Dong-Hee Kim, PÃ¤ivi TÃ¶rmÃ¤
Geometric Origin of Superfluidity in the Lieb-Lattice Flat Band
published pages: 45303, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.117.045303
|Physical Review Letters 117/4||2019-06-13|
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