Skip to content
DraconiticResearch
Search Sources API
178,970 studies31 sourcesUpdated 21 min ago
PreprintCC BY-NC-SA 4.0arXiv

The Superconducting Talbot Effect in Phased-Array Josephson Junctions

  • Hechen Ren
  • Ziying Li
Open at sourcePDFDOICite

Abstract

We introduce the superconducting Talbot effect---a macroscopic quantum self-imaging phenomenon occurring when proximitized Cooper pairs propagate through a ballistic two-dimensional electron gas. By configuring periodic superconducting leads into a phased-array Josephson junction with programmable phase differences, we demonstrate active steering of the resulting superconducting Talbot carpet. To overcome transport resolution limits, we design a Vernier-scale collector array that performs sub-wavelength sampling of the fractional Talbot pattern. This approach maps real-space quantum interference with high robustness to disorder, enabling direct extraction of Fermi wavelengths across helical, spin-degenerate, and spin-orbit-split Fermi surfaces. Tight-binding numerical calculations on a square lattice validate the real-space interference patterns. Our results establish a versatile framework for coherent wavefront engineering and quantum materials diagnostics in superconducting optics.

Related

  1. Coulomb Blockade in a One-Dimensional Array of Strong Josephson Junctions
    Bayan Karimi, Ze-Yan Chen, Jukka P. Pekola +3
    arXivPreprintCC BY-NC-SA 4.0Full textCondensed matterQuantum physics & quantum informationarXiv
  2. Superconducting Diode Effect due to the Inverse Spin Hall Effect in Josephson Junctions with Extrinsic Spin-Orbit Interaction
    Yositake Takane, Aurélien Manchon, Gen Tatara
    arXivPreprintarXiv licenceFull textCondensed matterarXiv
  3. Sidewall spacer passivated epitaxial NbN/AlN/NbN Josephson junctions for superconducting qubit applications
    Koki Honda, Daiki Kurihara, Hiroki Kutsuma +2
    arXivPreprintarXiv licenceFull textCondensed matterQuantum physics & quantum informationarXiv
  4. Josephson energy of superconducting junctions: amorphous versus crystalline tunnel barriers
    Wanting Zhang, Aldilene Saraiva-Souza, Félix Beaudoin +3
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  5. Nano-Nb Superconducting 3D Josephson Junctions Arrays in Cu-Normal Matrix: Superconducting Phase Coherence and Quantum Fluctuations Properties
    R. L. de Almeida, J. Albino Aguiar, J. A. H. Coaquira
    arXivPreprintarXiv licenceFull textCondensed matterarXiv

Cite

BibTeXRIS
BibTeX
@misc{ren2026superconducting,
  title = {{The Superconducting Talbot Effect in Phased-Array Josephson Junctions}},
  author = {Hechen Ren and Ziying Li},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.24572},
  eprint = {2609.24572},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.24572},
  note = {CC BY-NC-SA 4.0},
}
RIS
TY  - UNPB
TI  - The Superconducting Talbot Effect in Phased-Array Josephson Junctions
AU  - Hechen Ren
AU  - Ziying Li
PY  - 2026
DA  - 2026/09/21
PB  - arXiv
DO  - 10.48550/arxiv.2609.24572
UR  - https://arxiv.org/abs/2609.24572
AB  - We introduce the superconducting Talbot effect---a macroscopic quantum self-imaging phenomenon occurring when proximitized Cooper pairs propagate through a ballistic two-dimensional electron gas. By configuring periodic superconducting leads into a phased-array Josephson junction with programmable phase differences, we demonstrate active steering of the resulting superconducting Talbot carpet. To overcome transport resolution limits, we design a Vernier-scale collector array that performs sub-wavelength sampling of the fractional Talbot pattern. This approach maps real-space quantum interference with high robustness to disorder, enabling direct extraction of Fermi wavelengths across helical, spin-degenerate, and spin-orbit-split Fermi surfaces. Tight-binding numerical calculations on a square lattice validate the real-space interference patterns. Our results establish a versatile framework for coherent wavefront engineering and quantum materials diagnostics in superconducting optics.
ER  -