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Low-Temperature Quantum Detectors

03.08 06.08.2025 | The Clarion Hotel Finnland

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Welcome to this LT30 satellite, Low-Temperature Quantum Detectors: from fundamentals to applications, hosted in Helsinki, Finland! This event is co-organized by InstituteQ, Finland’s national quantum institute, and SUPERQMAP COST Action 21144.

Recent developments in low-temperature detectors incorporate genuine quantum features, promising to reach unprecedented levels of measurement precision. On a fundamental level, these highly sensitive devices will give us a glimpse into the world of quantum/thermal fluctuations and the effect of measurement backaction, and will advance the utilization of quantum resources and feedback. They will create a pathway to scientific breakthroughs: novel phenomena in condensed-matter physics, enhanced spectroscopical characterization, observation of new particles, and understanding the interaction between gravity and quantum-mechanical objects.

The topics of the conference comprise (but are not limited to) the following:

  • novel read-out methods and devices for quantum computers
  • ultrasensitive and fast thermometry, bolometry, and calorimetry
  • microwave single-photon detectors: applications in axion detection and spin measurements
  • new materials (high-kinetic inductance, granular superconductors, topological, graphene, other 2D materials)
  • algorithms for sensing, including machine learning
  • detectors for particle physics and astronomy
  • fundamental limits on sensitivity and quantum metrology
  • enabling devices: parametric amplifiers, low-temperature electronics
  • gravitational measurements
  • entanglement, squeezing, coherence, and active feedback as measurement resources
  • unconventional sensors in cQED
  • hybrid mechanical/magneto/opto/microwave devices
  • superconducting qubits as sensors of electromagnetic fields

Keynote speakers:

  • Patrice Bertet (CEA Saclay, France)
  • Kent Irwin (Stanford University)
  • Andrew Cleland (University of Chicago)

Invited speakers:

  • Monica Allen (University of California, San Diego)
  • Nicolò Crescini (Fondazione Bruno Kessler)
  • Arkady Fedorov (University of Queensland)
  • Mikko Möttönen (Aalto University, VTT)
  • Michael Tobar (University of Western Australia)
  • Shyam Shankar (University of Texas)
  • Valla Fatemi (Cornell University)
  • Martino Poggio (University of Basel)
  • Karl Berggren (Massachusetts Institute of Technology)
  • Monica Allen (University of California, San Diego)

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