49 citations · 250 across the 27 of their papers we have counts for
27 papers
Size and Impurity Effects on Scattering of Valley Hall Modes in Gate-Defined Bilayer Graphene Superlattices
Marcus N. Kanestrøm, Antonio L. R. Manesco, D. O. Oriekhov
In the present paper we perform a tight-binding simulation of gate-defined islands in Bernal bilayer graphene (BLG). The inversion of the gap sign on the boundaries of the islands…
Same-spin Andreev reflections in the quantum Hall regime: the role of loss
Chun-Chia Chen, Jordan T. McCourt, John Chiles +7
The interfaces of superconductors and topological materials hold promise for realizing exotic states and excitations. An important example is provided by the chiral Andreev edge st…
Probing Cooper pair momentum by quasiparticle steering with planar Josephson junctions
Isidora Araya Day, Anton R. Akhmerov, Antonio R. L. Manesco
The Cooper pair momentum in a superconductor is associated with a phase gradient of the superconducting order parameter. In general, this momentum is small compared to the Fermi mo…
Coherent control of spinmons
Johanne Bratland Tjernshaugen, Florinda Viñas Boström, Jeroen Danon +3
The protection of superconducting qubits from certain noise sources often comes at the cost of increased sensitivity to other decoherence channels. Here, we explore a route to avoi…
Strain engineering of Andreev spin qubits in Germanium
Vittorio Coppini, Patrick Del Vecchio, Antonio L. R. Manesco +4
Planar germanium heterostructures are promising hosts for hybrid quantum devices due to their compatibility with superconductors, low material disorder, and relaxed fabrication con…
Loopless multiterminal quantum circuits at odd parity
Antonio Manesco, Anton Akhmerov, Valla Fatemi
We theoretically investigate loopless multiterminal hybrid superconducting devices at odd fermion parity with time-reversal symmetry. We find that the energy-phase relationship has…
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…
Identifying biases of the Majorana scattering invariant
Isidora Araya Day, Antonio L. R. Manesco, Michael Wimmer +1
The easily accessible experimental signatures of Majorana modes are ambiguous and only probe topology indirectly: for example, quasi-Majorana states mimic most properties of Majora…
Mixed spin-boson coupling for qubit readout with suppressed residual shot-noise dephasing
Jinlun Hu, Antonio L. R. Manesco, André Melo +3
Direct dipole coupling between a two-level system and a bosonic mode describes the interactions present in a wide range of physical platforms. In this work, we study a coupling tha…
Gate-defined Kondo lattices with valley-helical quantum dot arrays
Antonio L. R. Manesco
Kondo physics and heavy-fermion behavior have been predicted and observed in moiré materials. The electric tunability of moiré materials allows an in-situ study of Kondo lattices'…
Probing valley phenomena with gate-defined valley splitters
Juan Daniel Torres Luna, Kostas Vilkelis, Antonio L. R. Manesco
Despite many reports of valley-related phenomena in graphene and its multilayers, current transport experiments cannot probe valley phenomena without the application of external fi…
Chiral adiabatic transmission protected by Fermi surface topology
Isidora Araya Day, Kostas Vilkelis, Antonio L. R. Manesco +3
We demonstrate that Andreev modes that propagate along a transparent Josephson junction have a perfect transmission at the point where three junctions meet. The chirality and the n…
A ballistic electron source with magnetically-controlled valley polarization in bilayer graphene
Josep Ingla-Aynés, Antonio L. R. Manesco, Talieh S. Ghiasi +3
The achievement of valley-polarized electron currents is a cornerstone for the realization of valleytronic devices. Here, we report on ballistic coherent transport experiments wher…
Fermionic quantum computation with Cooper pair splitters
Kostas Vilkelis, Antonio Manesco, Juan Daniel Torres Luna +3
We propose a practical implementation of a universal quantum computer that uses local fermionic modes (LFM) rather than qubits. The device layout consists of quantum dots tunnel co…
Specular electron focusing between gate-defined quantum point contacts in bilayer graphene
Josep Ingla-Aynés, Antonio L. R. Manesco, Talieh S. Ghiasi +4
We report on multiterminal measurements in a ballistic bilayer graphene (BLG) channel where multiple spin and valley-degenerate quantum point contacts (QPCs) are defined by electro…
Spatial separation of spin currents in transition metal dichalcogenides
Antonio L. R. Manesco, Artem Pulkin
We theoretically predict spatial separation of spin-polarized ballistic currents in transition metal dichalcogenides (TMDs) due to trigonal warping. We quantify the effect in terms…
Near zero-energy Caroli-de Gennes-Matricon vortex states in the presence of impurities
Bruna S. de Mendonça, Antonio L. R. Manesco, Nancy Sandler +1
Caroli-de Gennes-Matricon (CdGM) states are localized states with a discrete energy spectrum bound to the core of vortices in superconductors. In topological superconductors, CdGM…
Correlation-induced valley topology in buckled graphene superlattices
Antonio L. R. Manesco, Jose L. Lado
Flat bands emerging in buckled monolayer graphene superlattices have been recently shown to realize correlated states analogous to those observed in twisted graphene multilayers. H…
Mechanisms of Andreev reflection in quantum Hall graphene
Antonio L. R. Manesco, Ian Matthias Flór, Chun-Xiao Liu +1
We simulate a hybrid superconductor-graphene device in the quantum Hall regime to identify the origin of downstream resistance oscillations in a recent experiment [Zhao et. al. Nat…
Electronic properties of InAs/EuS/Al hybrid nanowires
Chun-Xiao Liu, Sergej Schuwalow, Yu Liu +4
We study the electronic properties of InAs/EuS/Al heterostructures as explored in a recent experiment [S. Vaitiekenas \emph{et al.}, Nat. Phys. (2020)], combining both spectroscopi…
Strain-engineering the topological type-II Dirac semimetal NiTe
Pedro P. Ferreira, Antonio L. R. Manesco, Thiago T. Dorini +4
In the present work, we investigated the electronic and elastic properties in equilibrium and under strain of the type-II Dirac semimetal NiTe using density functional theory (…
Correlations in the elastic Landau level of spontaneously buckled graphene
Antonio L. R. Manesco, Jose L. Lado, Eduardo V. S. Ribeiro +2
Electronic correlations stemming from nearly flat bands in van der Waals materials have demonstrated to be a powerful playground to engineer artificial quantum matter, including su…
Two-band superconductivity with unconventional pairing symmetry in HfVGa
A. Bhattacharyya, P. P. Ferreira, F. B. Santos +6
In this letter, we have examined the superconducting ground state of the HfVGa compound using resistivity, magnetization, zero-field (ZF) and transverse-field (TF) muon-spi…
Effective model for Majorana modes in graphene
A. L. R. Manesco, D. Rodrigues, G. Weber
It was recently proposed that the interface between a graphene nanoribbon in the canted antiferromagnetic quantum Hall state and a s-wave superconductor may present topological sup…