Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Ruben Seoane"'
Autor:
Nitsch, Maximilian, Maffi, Lorenzo, Baran, Virgil V., Souto, Rubén Seoane, Paaske, Jens, Leijnse, Martin, Burrello, Michele
The Majorana tetron is a prototypical topological qubit stemming from the ground state degeneracy of a superconducting island hosting four Majorana modes. This degeneracy manifests as an effective non-local spin degree of freedom, whose most paradigm
Externí odkaz:
http://arxiv.org/abs/2411.11981
A Josephson diode is a superconducting circuit element that enables non-reciprocal transport, allowing a dissipationless supercurrent to preferentially flow in a single direction. Existing methods for achieving the required symmetry breaking mostly r
Externí odkaz:
http://arxiv.org/abs/2410.03433
Autor:
Maiani, Andrea, Souto, Rubén Seoane
Altermagnetic superconductors hold the potential for novel phenomena, including topological states, finite-momentum superconductivity, as well as promising applications in spintronics. However, an experimental demonstration of the coexistence of thes
Externí odkaz:
http://arxiv.org/abs/2409.01008
Two semiconducting quantum dots (QDs) coupled through a superconductor constitute a minimal realisation of a Kitaev chain with Majorana zero modes (MZMs). Such MZMs can be detected by e.g., tunneling conductance between each QD and normal leads [Dvir
Externí odkaz:
http://arxiv.org/abs/2407.07050
Autor:
Valentini, Marco, Souto, Rubén Seoane, Borovkov, Maksim, Krogstrup, Peter, Meir, Yigal, Leijnse, Martin, Danon, Jeroen, Katsaros, Georgios
Superconductor-semiconductor hybrid systems play a crucial role in realizing nanoscale quantum devices, including hybrid qubits, Majorana bound states, and Kitaev chains. For such hybrid devices, subgap states play a prominent role in their operation
Externí odkaz:
http://arxiv.org/abs/2407.05195
Autor:
Benestad, Jacob, Tsintzis, Athanasios, Souto, Rubén Seoane, Leijnse, Martin, van Nieuwenburg, Evert, Danon, Jeroen
We demonstrate reliable machine-learned tuning of quantum-dot-based artificial Kitaev chains to Majorana sweet spots, using the covariance matrix adaptation algorithm. We show that a loss function based on local tunnelling-spectroscopy features of a
Externí odkaz:
http://arxiv.org/abs/2405.01240
Autor:
Souto, Rubén Seoane, Aguado, Ramón
Publikováno v:
Lecture Notes in Physics, vol 1025. Springer, Cham. (2024)
In recent years, experimental advances have made it possible to achieve an unprecedented degree of control over the properties of subgap bound states in hybrid nanoscale superconducting structures. This research has been driven by the promise of engi
Externí odkaz:
http://arxiv.org/abs/2404.06592
Autor:
Souto, Rubén Seoane, Kuzmanovski, Dushko, Sardinero, Ignacio, Burset, Pablo, Balatsky, Alexander V.
Publikováno v:
J Low Temp Phys 217, 106 (2024)
Superconductivity and magnetism are competing effects that can coexist in certain regimes. Their co-existence leads to unexpected new behaviors that include the onset of exotic electron pair mechanisms and topological phases. In this work, we study t
Externí odkaz:
http://arxiv.org/abs/2403.12889
Topological superconductors are appealing building blocks for robust and reliable quantum information processing. Most platforms for engineering topological superconductivity rely on a combination of superconductors, materials with intrinsic strong s
Externí odkaz:
http://arxiv.org/abs/2401.17670
Autor:
Souto, Rubén Seoane, Leijnse, Martin, Schrade, Constantin, Valentini, Marco, Katsaros, Georgios, Danon, Jeroen
Publikováno v:
Phys. Rev. Research 6, L022002 (2024)
Josephson diodes are superconducting elements that show an asymmetry in the critical current depending on the direction of the current. Here, we theoretically explore how an alternating current bias can tune the response of such a diode. We show that
Externí odkaz:
http://arxiv.org/abs/2312.09204