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Showing 1–13 of 13 results
Advanced filters: Author: Srijit Goswami Clear advanced filters

  • An artificial Kitaev chain is realized by engineering three coupled quantum dots in a two-dimensional electron gas, which enables the manipulation and observation of both the edge and bulk states.

    • Sebastiaan L. D. ten Haaf
    • Yining Zhang
    • Srijit Goswami
    Research
    Nature
    Volume: 641, P: 890-895

  • By coupling two quantum dots via a superconductor-semiconductor hybrid region in a 2D electron gas, the authors achieve efficient splitting of Cooper pairs. Further, by applying a magnetic field perpendicular to the spin-orbit field, they can induce and measure large triplet correlations in the Cooper pair splitting process.

    • Qingzhen Wang
    • Sebastiaan L. D. ten Haaf
    • Srijit Goswami
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Disorder has been a prime challenge to study the topological properties in a hybrid system. Here, Zhanget al. report ballistic superconductivity in InSb nanowires interfacing with a NbTiN superconductor, paving the way for disorder-free Majorana devices.

    • Hao Zhang
    • Önder Gül
    • Leo P. Kouwenhoven
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • Hybrid superconductor-semiconductor devices offer a promising platform for topological superconductivity. Here, Ke and Moehle et al. create ballistic Josephson junctions in InSb quantum wells and use magnetic and electric fields to control their free energy landscape.

    • Chung Ting Ke
    • Christian M. Moehle
    • Srijit Goswami
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6

  • The performance of graphene field effect transistors is adversely affected by fluctuations in the electrical resistance at the graphene/metal interface. Here, the authors unveil the microscopic origin of such contact noise, highlighting the role of current crowding.

    • Paritosh Karnatak
    • T. Phanindra Sai
    • Arindam Ghosh
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • Quantum transport in superconductors remains difficult to study due to the typically small Fermi wavelength. Here, Thierschmann et al. demonstrate a superconducting quantum point contact with split gate technology at the superconducting LaAlO3/SrTiO3 interface and, due to its two-dimensionality, identify three regimes of quantum transport.

    • Holger Thierschmann
    • Emre Mulazimoglu
    • Andrea D. Caviglia
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • Gate-tunable superconducting quantum interference devices can be created in the two-dimensional superconductor formed at oxide interfaces.

    • Srijit Goswami
    • Emre Mulazimoglu
    • Andrea D. Caviglia
    Research
    Nature Nanotechnology
    Volume: 11, P: 861-865

  • We have implemented a two-site Kitaev chain in a two-dimensional electron gas by coupling quantum dots through Andreev bound states in a superconductor–semiconductor hybrid region.

    • Sebastiaan L. D. ten Haaf
    • Qingzhen Wang
    • Srijit Goswami
    Research
    Nature
    Volume: 630, P: 329-334

  • P. Rout et al. study Josephson junctions where the weak link is WSe2-encapsulated bilayer graphene, which features helical edge modes. They argue that the supercurrent channels along opposite edges of the weak link are coupled by a circulating helical mode.

    • Prasanna Rout
    • Nikos Papadopoulos
    • Srijit Goswami
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7