Superconducting Technologies

Development of superconducting devices for space and quantum applications
Superconducting Technologies

IPs: Alicia Gómez Gutiérrez, Jesús Martin-Pintado



Superconducting technologies are fundamental for a wide variety of future applications, ranging from state-of-the-art astronomical instrumentation for astronomical facilities to devices for quantum computation and single photon detectors based on superconducting nanowires. In recent years we have developed in collaboration with national institutions (IMDEA-Nanoscience, DICOM at U. Cantabria, Q-MAD in ICMA-CSIC and INM (CSIC)) the required skills and resources for the development of microwave superconducting technologies, covering the design, nanofabrication and low temperature (mK) electrical and optical characterization of large-format resonator arrays with more than 1000 elements.


Within the microwave superconducting technologies, Kinetic Inductance Detectors (KIDs) are state-of-the-art radiation detectors for millimeter/submillimeter/far-infrared astronomical instrumentation. In the context of the KID technology for astrophysics applications, we have participated in the European project SPACEKIDS funded by the FP7 for the development of state of the art KIDs arrays for space missions and in the CORE mission proposal, submitted to the ESA M5 call. We are also a member of the NIKA2 and KISS collaborations lead by I. Néel-CNRS for the development of large-format cameras based on KIDs operating the in millimeter range to map the polarization of the dust emission and the Cosmic Microwave Background.

Superconducting Detectors Group (SDG)
Fig. 1. Left: Kinetic Inductance Detector array prototype with 1140 pixels. Centre: Dilution cryostat with the prototype mounted. Right: Electrical characterization at 15 mK, each minimum corresponds to a pixel.

Superconducting resonators have a huge potential for applications in quantum technologies. Based on our expertise in the development of superconducting detectors, we have combined microwave simulations with fine-tuned nanofabrication processes to develop optimized superconducting resonator arrays to be implemented in a proof-of-concept of large-scale molecular quantum processors. This type of systems, based on molecular spin qubits, are promising candidates as an alternative to the existing schemes based on superconducting qubits.

Superconducting Detectors Group (SDG)
Fig. 2. Left: Optical image of a Niobium based superconducting resonator consisting on a series Capacitor-Inductor circuit inductively coupled to a transmission line. Center: Optical image of a fabricated device with twelve LERs coupled to a single transmission line. Right: Strong coupling achieved at 4 K between a superconducting resonator and a DPPH (2,2-diphenyl-1-picrylhydrazyl) spin ensemble (in collaboration with Q-MAD).
The team:

Former Members:

Víctor Rollano García

Víctor Román Rodríguez

Patricia Prieto Vizán

  1. SUPERconducting circuits for HYbrid QUantum Processing unit (SUPERHYQUP), Agencia Estatal de Investigación, Proyectos de Transición Ecológica y Transición Digital. PI: Jesús Martin-Pintado/ Alicia Gómez. 150 650 €, 01/12/2022-30/11/2024.
  2. FAult Tolerant MOLecular Spin processor (FATMOLS), H2020 FET-Open
  3. Development of Hybrid Graphene-Superconductor Detectors for Quantum and Space Applications-DEFROST, Office of Naval Research-Global
  4. Exploring 2D material for developing Kinetic Inductance Detectors (2DKIDs- ESP2017‐92706‐EXP), MINECO.
  5. Desarrollo y explotación de nuevas tecnologías para instrumentación espacial en la Comunidad de Madrid (Tec2Space-CM-P2018/NMT-4291), 01/01/2019 – 31/12/2022, Conserjería de Educación e Investigación de la Comunidad de Madrid.
  6. Contribución española a SPICA, desarrollo de instrumentación criogénica y explotación científica multilongitud de onda (PID2019-105552RB-C41). MICINN.

Related news

Related publications

The Canfranc Axion Detection Experiment (CADEx): search for axions at 90 GHz with Kinetic Inductance Detectors
High cooperativity coupling to nuclear spins on a circuit quantum electrodynamics architecture
Analysis and Performance of Lumped-Element Kinetic Inductance Detectors for W-Band


Advanced Instrumentation Department, Astrophysics Department
Telephone: +34 915206404
Advanced Instrumentation Department, Astrophysics Department
Telephone: +34 915206404