Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion

Autor: Javier Argüello-Luengo, Manfred J. Mark, Francesca Ferlaino, Maciej Lewenstein, Luca Barbiero, Sergi Julià-Farré

Publikováno v: Quantum, Vol 8, p 1285 (2024)

Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite inte

Externí odkaz: https://doaj.org/article/1440769b3c3e40618ed633de4a058f2c

Quantum heat engines with Carnot efficiency at maximum power

Autor: Mohit Lal Bera, Sergi Julià-Farré, Maciej Lewenstein, Manabendra Nath Bera

Publikováno v: Physical Review Research, Vol 4, Iss 1, p 013157 (2022)

Heat engines constitute the major building blocks of modern technologies. However, conventional heat engines with higher power yield lesser efficiency and vice versa and respect various power-efficiency trade-off relations. This is also assumed to be

Externí odkaz: https://doaj.org/article/428c12fdfe254da684ac596d208bcced

Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing

Autor: Lorenzo Cardarelli, Sergi Julià-Farré, Maciej Lewenstein, Alexandre Dauphin, Markus Müller

Publikováno v: Quantum science and technology 8(2), 025018-(2023). doi:10.1088/2058-9565/acbc45

The interplay between many-body interactions and the kinetic energy gives rise to rich phase diagrams hosting, among others, interaction-induced topological phases. These phases are characterized by both a local order parameter and a global topologic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::573e3eddf5531122c32e456c30e907ef
http://arxiv.org/abs/2203.14818

Self-Trapped Polarons and Topological Defects in a Topological Mott Insulator

Autor: Sergi Julià-Farré, Alexandre Dauphin, Maciej Lewenstein, M. Müller

Publikováno v: Physical Review Letters
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Physical review letters 125(24), 240601 (2020). doi:10.1103/PhysRevLett.125.240601

Many-body interactions in topological quantum systems can give rise to new phases of matter, which simultaneously exhibit both rich spatial features and topological properties. In this work, we consider spinless fermions on a checkerboard lattice wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f2a6988d249edaeabbfe7ac4d31d5ff
https://pubmed.ncbi.nlm.nih.gov/33412044

Bounds on the capacity and power of quantum batteries

Autor: Manabendra Nath Bera, Tymoteusz Salamon, Maciej Lewenstein, Arnau Riera, Sergi Julià-Farré

Publikováno v: Physical Review Research
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Quantum batteries, composed of quantum cells, are expected to outperform their classical analogs. The origin of such advantages lies in the role of quantum correlations, which may arise during the charging and discharging processes performed on the b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d08ebb572e13c85a167d86d27e1c319