Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Viebahn, Konrad"'
Multi-photon resonances to high-lying energy levels represent an unavoidable source of Floquet heating in strongly driven quantum systems. In this work, we extend the recently developed two-tone approach of 'cancelling' multi-photon resonances to sha
Externí odkaz:
http://arxiv.org/abs/2410.12308
Autor:
Zhu, Zijie, Kiefer, Yann, Jele, Samuel, Gächter, Marius, Bisson, Giacomo, Viebahn, Konrad, Esslinger, Tilman
Gate operations composed in quantum circuits form the basis of digital quantum simulation and quantum processing. While two-qubit gates generally operate between nearest neighbours, many circuits require non-local connectivity, necessitating some for
Externí odkaz:
http://arxiv.org/abs/2409.02984
Autor:
Viebahn, Konrad, Walter, Anne-Sophie, Bertok, Eric, Zhu, Zijie, Gächter, Marius, Aligia, Armando A., Heidrich-Meisner, Fabian, Esslinger, Tilman
Publikováno v:
Physical Review X 14, 021049 (2024)
A topological 'Thouless' pump represents the quantised motion of particles in response to a slow, cyclic modulation of external control parameters. The Thouless pump, like the quantum Hall effect, is of fundamental interest in physics because it link
Externí odkaz:
http://arxiv.org/abs/2308.03756
Using two-frequency driving in two dimensions opens up new possibilites for Floquet engineering, which range from controlling specific symmetries to tuning the properties of resonant gaps. In this work, we study two-band lattice models subject to two
Externí odkaz:
http://arxiv.org/abs/2301.05229
We propose a method for separating trapped atoms in optical lattices by large distances. The key idea is the cyclic transfer of atoms between two lattices of variable spacing, known as accordion lattices, each covering at least a factor of two in lat
Externí odkaz:
http://arxiv.org/abs/2301.04144
Publikováno v:
Science 384, 317 (2024)
The transport properties of gapless edge modes at boundaries between topologically distinct domains are of fundamental and technological importance. Therefore, it is crucial to gain a better understanding of topological edge states and their response
Externí odkaz:
http://arxiv.org/abs/2301.03583
Autor:
Walter, Anne-Sophie, Zhu, Zijie, Gächter, Marius, Minguzzi, Joaquín, Roschinski, Stephan, Sandholzer, Kilian, Viebahn, Konrad, Esslinger, Tilman
Publikováno v:
Nat. Phys. (2023)
Geometric properties of waves and wave functions can explain the appearance of integer-valued observables throughout physics. For example, these 'topological' invariants describe the plateaux observed in the quantised Hall effect and the pumped charg
Externí odkaz:
http://arxiv.org/abs/2204.06561
Autor:
Minguzzi, Joaquín, Zhu, Zijie, Sandholzer, Kilian, Walter, Anne-Sophie, Viebahn, Konrad, Esslinger, Tilman
Constructing new topological materials is of vital interest for the development of robust quantum applications. However, engineering such materials often causes technological overhead, such as large magnetic fields, specific lattice geometries, stron
Externí odkaz:
http://arxiv.org/abs/2112.12788
Autor:
Sandholzer, Kilian, Walter, Anne-Sophie, Minguzzi, Joaquín, Zhu, Zijie, Viebahn, Konrad, Esslinger, Tilman
Publikováno v:
Phys. Rev. Research 4, 013056 (2022)
The dynamic engineering of band structures for ultracold atoms in optical lattices represents an innovative approach to understand and explore the fundamental principles of topological matter. In particular, the folded Floquet spectrum determines the
Externí odkaz:
http://arxiv.org/abs/2110.08251
Autor:
Viebahn, Konrad, Minguzzi, Joaquìn, Sandholzer, Kilian, Walter, Anne-Sophie, Görg, Frederik, Esslinger, Tilman
Publikováno v:
Phys. Rev. X 11, 011057 (2021)
The concept of `Floquet engineering' relies on an external periodic drive to realise novel, effectively static Hamiltonians. This technique is being explored in experimental platforms across physics, including ultracold atoms, laser-driven electron s
Externí odkaz:
http://arxiv.org/abs/2003.05937