86 citations · 335 across the 15 of their papers we have counts for
16 papers
Quantum capacitance and parity switching of a quantum-dot-based Kitaev chain
Chun-Xiao Liu
An array of quantum dots coupled via superconductivity provides a new platform for creating Kitaev chains with Majorana zero modes, offering a promising avenue toward topological q…
Using Andreev bound states and spin to remove domain walls in a Kitaev chain
Wietze D. Huisman, Sebastiaan L. D. ten Haaf, Chun-Xiao Liu +6
Quantum dot-superconductor hybrids have been established as a suitable platform for realizing Kitaev chains hosting Majorana bound states. Implementing these structures in a qubit…
Pareto-optimality of Majoranas in hybrid platforms
Juan Daniel Torres Luna, Sebastian Miles, A. Mert Bozkurt +4
To observe Majorana bound states, and especially to use them as a qubit, requires careful optimization of competing quality metrics. We systematically compare Majorana quality in p…
Probing Majorana localization of a phase-controlled three-site Kitaev chain with an additional quantum dot
Alberto Bordin, Florian J. Bennebroek Evertsz', Bart Roovers +11
Few-site implementations of the Kitaev chain offer a minimal platform to study the emergence and stability of Majorana bound states. Here, we realize two- and three-site chains in…
Braiding Majoranas in a linear quantum dot-superconductor array: Mitigating the errors from Coulomb repulsion and residual tunneling
Sebastian Miles, Francesco Zatelli, A. Mert Bozkurt +2
Exchanging the positions of two non-Abelian anyons transforms between many-body wavefunctions within a degenerate ground-state manifold. This behavior is fundamentally distinct fro…
Observation of edge and bulk states in a three-site Kitaev chain
Sebastiaan L. D. ten Haaf, Yining Zhang, Qingzhen Wang +10
A chain of quantum dots (QDs) in semiconductor-superconductor hybrid systems can form an artificial Kitaev chain hosting Majorana bound states (MBSs). These zero-energy states are…
Rabi and Ramsey oscillations of a Majorana qubit in a quantum dot-superconductor array
Haining Pan, Sankar Das Sarma, Chun-Xiao Liu
The Kitaev chain can be engineered within a quantum dot-superconductor array, hosting Majorana zero modes at fine-tuned sweet spots. In this work, we propose and simulate the occur…
Scaling up a sign-ordered Kitaev chain without magnetic flux control
Chun-Xiao Liu, Sebastian Miles, Alberto Bordin +4
Quantum dot-superconductor arrays have emerged as a new and promising material platform for realizing topological Kitaev chains. So far, experiments have implemented a two-site cha…
Interaction-induced strong zero modes in short quantum dot chains with time-reversal symmetry
A. Mert Bozkurt, Sebastian Miles, Sebastiaan L. D. ten Haaf +3
We theoretically explore the emergence of strong zero modes in a two-site chain consisting of two quantum dots coupled due to a central dot that mediates electron hopping and singl…
Cross-Platform Autonomous Control of Minimal Kitaev Chains
David van Driel, Rouven Koch, Vincent P. M. Sietses +21
Contemporary quantum devices are reaching new limits in size and complexity, allowing for the experimental exploration of emergent quantum modes. However, this increased complexity…
Signatures of Majorana protection in a three-site Kitaev chain
Alberto Bordin, Chun-Xiao Liu, Tom Dvir +14
Majorana zero modes (MZMs) are non-Abelian excitations predicted to emerge at the edges of topological superconductors. One proposal for realizing a topological superconductor in o…
Flux-tunable Kitaev chain in a quantum dot array
Juan Daniel Torres Luna, A. Mert Bozkurt, Michael Wimmer +1
Connecting quantum dots through Andreev bound states in a semiconductor-superconductor hybrid provides a platform to create a Kitaev chain. Interestingly, in a double quantum dot,…
Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states
Francesco Zatelli, David van Driel, Di Xu +14
The recent realization of a two-site Kitaev chain featuring "poor man's Majorana" states demonstrates a path forward in the field of topological superconductivity. Harnessing the p…
A two-site Kitaev chain in a two-dimensional electron gas
Sebastiaan L. D. ten Haaf, Qingzhen Wang, A. Mert Bozkurt +9
Artificial Kitaev chains can be used to engineer Majorana bound states (MBSs) in superconductor-semiconductor hybrids. In this work, we realize a two-site Kitaev chain in a two-dim…
Enhancing the excitation gap of a quantum-dot-based Kitaev chain
Chun-Xiao Liu, A. Mert Bozkurt, Francesco Zatelli +3
Connecting double quantum dots via a semiconductor-superconductor hybrid segment offers a platform for creating a two-site Kitaev chain that hosts a pair of "poor man's Majoranas"…
Kitaev chain in an alternating quantum dot-Andreev bound state array
Sebastian Miles, David van Driel, Michael Wimmer +1
We propose to implement a Kitaev chain based on an array of alternating normal and superconductor hybrid quantum dots embedded in semiconductors. In particular, the orbitals in the…