Carlos Payá

Predoc researcher at ICMM-CSIC.
Theory of Condensed Matter Physis.
Mc 7,31-37.

[Carlos Payá @cPaya_phys]

5/ Check out the full paper for the complete theoretical breakdown: https://t.co/i02T91f8SC

With C. Robles, P. San-Jose and E. Prada.

Learn more:

Origins and behavior of Quasi-Majoranas: 🔗 https://t.co/sca2FWeqb9
CdGMs in full-shell nanowires: 🔗 https://t.co/5ZaTul7xCm

[Carlos Payá @cPaya_phys]

It's on arXiv! 🚨 Absence of Quasi-Majorana False Positives in Full-Shell Hybrid Nanowires.

TL;DR: The "trivial skin" saves the day. We show how CdGM analogs naturally push quasi-Majoranas out of reach in tunnel spectroscopy! 🧵👇
https://t.co/i02T91f8SC @icmm_csic @Q4Q_icmm

[Carlos Payá @cPaya_phys]

4/ The smoother (χ) the electrostatic potential, the larger this trivial skin is in space.

If it's smooth enough to produce quasi-Majorana ZEPs, it pushes the topological region deep into the wire—making it completely inaccessible to tunnel spectroscopy!

[Carlos Payá @cPaya_phys]

The fluxoid valve represents a new type of quantum switch that could enable more sophisticated superconducting circuits. We also show that the valve effect is enhanced when the nanowires host Majorana zero modes, which are currently being investigated for quantum computing.

[Carlos Payá @cPaya_phys]

Fresh on PRB! Fluxoid valve effect in full-shell nanowire Josephson junctions https://t.co/ES03WUyVR6
A new type of supercurrent valve based on tubular superconductors. @Q4Q_icmm @icmm_csic and @ifimacuam

[Carlos Payá @cPaya_phys]

We find that the supercurrent can flow normally when the two fluxoid numbers are the same, but it is blocked otherwise. The on-off behavior can be controlled by tuning the magnetic field or the voltage of a backgate.

[Ramon Aguado @AguadoQuantum]

Si queréis saber más sobre el Premio Nobel de Física, aquí os lo cuento. Estos experimentos sentaron las bases de la tecnología cuántica basada en qubits superconductores #NobelPrize #quantum #superconductors #Physics #qubit

[Carlos Payá @cPaya_phys]

Read the full paper on arxiv: https://t.co/5NQJo7oSCj 9/9

[Carlos Payá @cPaya_phys]

New prerpint or arXiv!!: Non-Hermitian Skin Effect and Electronic Nonlocal Transport https://t.co/5NQJo7oSCj
With O. Solow, E. Prada, @AguadoQuantum and K. Flensberg at @icmm_csic @UCPH_Research @Q4Q_icmm 1/9

[Carlos Payá @cPaya_phys]

On a personal level, grateful to O. Solow and K. Flensberg @UCPH_Research for an inspiring 3-month sprint at QDev-NBI last spring. Bringing together our knowledge on non-Hermitian theory and quantum transport was a game-changer. Hope to collaborate more in the future! 8/9