---
res:
  bibo_abstract:
  - "Technology involving hybrid superconductor–semiconductor materials is a promising
    avenue for engineering quantum devices for information storage, manipulation,
    and transmission. Proximity-induced superconducting correlations are an essential
    part of such devices. While the proximity effect in the conduction band of common
    semiconductors is well understood, its manifestation in confined hole gases, realized
    for instance in germanium, is an active area of research. Lower-dimensional hole-based
    systems, particularly in germanium, are emerging as an attractive platform for
    a variety of solid-state quantum devices, due to their combination of efficient
    spin and charge control and long coherence times. The recent experimental realization
    of the proximity effect in germanium thus calls for a theoretical description
    that is tailored to hole gases. In this work, we propose a simple model to describe
    proximity-induced superconductivity in two-dimensional hole gases, incorporating
    both the heavy-hole (HH) and light-hole (LH) bands. We start from the Luttinger–Kohn
    model, introduce three parameters that characterize hopping across the superconductor–semiconductor
    interface, and derive explicit intraband and interband effective pairing terms
    for the HH and LH bands. Unlike previous approaches, our theory provides a quantitative
    relationship between induced pairings and interface properties. Restricting our
    general model to an experimentally relevant case where only the HH band crosses
    the chemical potential, we predict the coexistence of \U0001D460-wave and \U0001D451-wave
    singlet pairings, along with triplet-type pairings, and modified Zeeman and Rashba
    spin–orbit couplings. Our results thus present a starting point for theoretical
    modeling of quantum devices based on proximitized hole gases, fueling further
    progress in quantum technology.@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Serafim
      foaf_name: Babkin, Serafim
      foaf_surname: Babkin
      foaf_workInfoHomepage: http://www.librecat.org/personId=e63d75c3-72ef-11ef-b75a-e303e149911f
  - foaf_Person:
      foaf_givenName: Benjamin
      foaf_name: Joecker, Benjamin
      foaf_surname: Joecker
  - foaf_Person:
      foaf_givenName: Karsten
      foaf_name: Flensberg, Karsten
      foaf_surname: Flensberg
  - foaf_Person:
      foaf_givenName: Maksym
      foaf_name: Serbyn, Maksym
      foaf_surname: Serbyn
      foaf_workInfoHomepage: http://www.librecat.org/personId=47809E7E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2399-5827
  - foaf_Person:
      foaf_givenName: Jeroen
      foaf_name: Danon, Jeroen
      foaf_surname: Danon
  bibo_doi: 10.1103/k4jh-pnxy
  bibo_issue: '21'
  bibo_volume: 111
  dct_date: 2025^xs_gYear
  dct_identifier:
  - UT:001514328000004
  dct_isPartOf:
  - http://id.crossref.org/issn/2469-9950
  - http://id.crossref.org/issn/2469-9969
  dct_language: eng
  dct_publisher: American Physical Society@
  dct_title: Superconducting proximity effect in two-dimensional hole gases@
...