Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Tsintzis, Athanasios"'
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:
Debbarma, Rousan, Tsintzis, Athanasios, Aspegren, Markus, Souto, Rubén Seoane, Lehmann, Sebastian, Dick, Kimberly, Leijnse, Martin, Thelander, Claes
In this work, we manipulate the phase shift of a Josephson junction using a parallel double quantum dot (QD). By employing a superconducting quantum interference device, we determine how orbital hybridization and detuning affect the current-phase rel
Externí odkaz:
http://arxiv.org/abs/2311.11867
Publikováno v:
Phys. Rev. Research 5, 043182 (2023)
Artificial Kitaev chains, formed by quantum dots coupled via superconductors, have emerged as a promising platform for realizing Majorana bound states. Even a minimal Kitaev chain (a quantum dot--superconductor--quantum dot setup) can host Majorana s
Externí odkaz:
http://arxiv.org/abs/2308.14751
Autor:
Tsintzis, Athanasios, Souto, Rubén Seoane, Flensberg, Karsten, Danon, Jeroen, Leijnse, Martin
Publikováno v:
Phys. Rev. X Quantum 5, 010323 (2024)
The possibility to engineer artificial Kitaev chains in arrays of quantum dots coupled via narrow superconducting regions has emerged as an attractive way to overcome the disorder issues that complicate the realization and detection of topological su
Externí odkaz:
http://arxiv.org/abs/2306.16289
Publikováno v:
Phys. Rev. B 106, L201404 (2022)
We propose and theoretically investigate an alternative way to create the poor man's Majorana bound states (MBSs) introduced in Phys. Rev. B 86, 134528 (2012). Our proposal is based on two quantum dots (QDs) with strong electron-electron interactions
Externí odkaz:
http://arxiv.org/abs/2207.06160
Quantum wells in InAs/GaSb heterostructures can be tuned to a topological regime associated with the quantum spin Hall effect, which arises due to an inverted band gap and hybridized electron and hole states. Here, we investigate electron-hole hybrid
Externí odkaz:
http://arxiv.org/abs/2007.05391
Autor:
Potts, Heidi, Chen, I-Ju, Tsintzis, Athanasios, Nilsson, Malin, Lehmann, Sebastian, Dick, Kimberly A., Leijnse, Martin, Thelander, Claes
Publikováno v:
Nature Communications 10, 5740 (2019)
Emerging theoretical concepts for quantum technologies have driven a continuous search for structures where a quantum state, such as spin, can be manipulated efficiently. Central to many concepts is the ability to control a system by electric and mag
Externí odkaz:
http://arxiv.org/abs/1905.06616
Publikováno v:
Phys. Rev. B 100, 115433 (2019)
We investigate odd-frequency superconducting correlations in normal-superconductor (NS) and short superconductor-normal-superconductor (SNS) junctions with the S region described by the Kitaev model of spinless fermions in one dimension. We demonstra
Externí odkaz:
http://arxiv.org/abs/1905.01171
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