The International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (WPI-QUP) invites applications for young researchers (post-doctoral fellows and graduate students) to stay and work with QUP researchers. QUP is developing a new measurement system using existing quantum fields to explore unknown quantum fields under "Bringing New Eyes to Humanity."

Additional Requirements for Selected Participants.

 ■ Insurance during the QUPIP period：
　　Insurance coverage is the responsibility of your home institution. You must have valid health and accident insurance (including coverage for occupational illnesses and work-related accidents) as well as personal liability insurance that provides adequate protection during your stay in Japan. If your home institution cannot arrange such coverage, you must obtain it yourself before coming to Japan. KEK’s overseas travel insurance is supplementary and does not replace your own insurance; it may cover injuries or illnesses arising from official QUPIP activities but does not cover private activities, including those outside working hours or on holidays. For reference, students at Japanese universities are typically covered by Gakkensai (Personal Accident Insurance for Students Pursuing Education and Research) and Gakkenbai (Liability Insurance coupled with Gakkensai) , and your coverage must be equivalent to or higher than these programs.
 ■ Radiation work：
　　Participants who plan to conduct research involving radiation must be properly registered as radiation workers at their home university or institution prior to arrival.

List of research subjects of QUP researchers in the program and their research plan for young researchers:

Hiroki Akamatsu (Research Location: KEK Tsukuba, Japan)
The projects span from characterization and development of a cryogenic instrument (TES bolometers), cryogenic harness, temperature controlling system. Interested in candidates with skills in low noise electronics, superconducting devices.

　Example study subjects for young researchers
  ■Testing and evaluation of TESs and associated readout technology
  ■Testing and evaluation of cryogenic harness together with SQUIDs
  ■Testing and evaluating of high-precision temperature controller
　　　　　

Daniela Bortoletto (Research Location: University of Oxford, UK)
The Oxford group has a leading role in both detector and physics activities in the ATLAS experiment. I am focusing on studies of the Higgs boson and developing and constructing pixel detectors using superb facilities offered by the Oxford Physics Microstructure Detector (OPMD) laboratory.

　Example study subjects for young researchers
  ■Developments of advanced machine-learning algorithms for tagging heavy flavour jets
  ■Studies of the Higgs boson and di-Higgs production with LHC-ATLAS data
  ■R&D on ultra-fast silicon detector and monolithic pixels
  ■Module development and testing for ATLAS ITk
　　　　　

Yuji Chinone (Research Location: KEK Tsukuba, Japan)
Data analysis of ground-based and satellite Cosmic Microwave Background (CMB) experiments for searching Axion-like particle (ALP) and physics beyond the Standard Model as well as Primordial Gravitational Waves (PGWs). Development and application of new analysis techniques, including machine learning (ML), for CMB experiments. Interested in candidates who will take a leading role in the POLARBEAR/Simons Array and Simons Observatory data analysis. Expertise in any data analysis and/or ML techniques is an advantage.

　Example study subjects for young researchers
  ■Time-domain astronomy with the POLARBEAR datasets.
  ■ALP search with the POLARBEAR/Simons Array datasets.
  ■Development and application of new data selection techniques with ML for
　　the POLARBEAR/Simons Array datasets.
  ■Development of analysis pipeline of Simons Observatory for the PGW search.
　　　　　

Tijmen de Haan (Research Location: KEK Tsukuba, Japan)
CMB Hardware: I develop low-noise systems of frequency-multiplexed 100mK transition edge sensors (TES) for precision CMB measurements. The frequency multiplexing technique is still evolving, with untapped potential to enhance TES stability, crosstalk, linearity, calibration, and noise performance.
　Example projects:
  ■Analytical and numerical modeling of TES multiplexing
  ■Real-time simulations of TES systems at sub-Kelvin temperatures

CMB Data Analysis: I work on forecasting and building requirements for future CMB experiments and perform data analysis for current missions.
　Example projects:
  ■Sunyaev-Zel'dovich effect searches in existing CMB datasets
  ■High-level hardware optimization for future space-based CMB missions through
　　end-to-end analysis

Artificial Intelligence: I created the AI platform cosmosage, which has in-depth knowledge of scientific literature in cosmology. cosmosage is evolving rapidly, moving from a proof-of-concept to a state-of-the-art AI for cosmology.
　Example projects:
  ■Automated data gathering and curation, generation of synthetic data
  ■Direct preference optimization and reinforcement learning for AI-driven science
  ■Performance evaluation and refinement of current and future cosmosage versions
　　　　　

Maurice Garcia-Sciveres (Research Locations: KEK, Japan, and LBNL, USA)
(1) Development of quantum sensor systems for low mass particle dark matter detection, aimed
at carrying out searches for low mass DM particles at the Kamioka mine. Interested in candidates with skills in cryogenics, low noise electronics, superconducting devices, dark matter search experiments.
(2) Development of next-generation hybrid pixel readout chips. Interested in candidates with skills
in ASIC design or testing, picosecond timing applications, pixel tracker operation, and simulation.

　Example study subjects for young researchers
  ■GEANT Simulation of backgrounds for low mass dark matter searches
  ■Testing of prototypes in a dilution refrigerator (measure superconducting transition temperature
　　of films, parasitic power contributions, etc.
  ■Testing of prototype integrated circuits. Measurements on things like timing jitter at the 10ps level
  ■Standalone C++ or python simulation of data flow and data compression in an chip with fast
　　timing information
　　　　　

Tommaso Ghigna (Research Location: KEK Tsukuba, Japan)
Design and optimization of TES detector arrays for CMB experiments and simulation of instrumental effects on CMB data. Most current and future CMB experiments are characterized by the use of multichroic antenna-coupled polarization-sensitive TES detectors. This solution requires complex RF-structures that need to be designed, simulated and then validated experimentally.
In parallel to this activity, I am working on simulating the effect of the instrument on CMB data to produce science forecasts, define requirements and study mitigation techniques to suppress instrumental systematic effects.

　Example study subjects for young researchers
  ■Design and optimization of lenslet-coupled sinuous antenna
  ■Design and optimization of superconductive LC chips for frequency-domain multiplexing
  ■Design and optimization of microstrip bandpass filters
  ■Analytical and numerical modeling of TES
  ■Modeling and simulation of optical elements and RF structures (antenna, bandpass filters, etc)
　　　　　

Masaya Hasegawa (Research Location: KEK Tsukuba, Japan)
Development of key technologies for low-noise and large format superconducting detector arrays in future CMB missions. Interested in candidates with skills in cryogenics, control engineering, quantum sensor, large-scale data processing, characterization of CMB telescope.

　Example study subjects for young researchers
  ■Testing of TES detector (including operation of dilution refrigerator)
  ■Demonstration of active vibration isolation for refrigerator
　　　　　

Kaori Hattori (Research Location: KEK Tsukuba, Japan)
Development of superconducting single-photon detectors (optical transition-edge sensors) for new dark matter search experiments. Interested in candidates with experiences in the development of detectors and skills in cryogenics, detector fabrication, array readout, optics.

　Example study subjects for young researchers
  ■Testing and evaluation of TESs and associated readouts.
  ■Single-photon detection.
　　　　　

Tsutomu Mibe (Research Location: KEK Tsukuba and J-PARC, Japan)
Experimental studies on particle physics with accelerator and precision measurements. The research subjects include applications of quantum sensors to the accelerator-based research.

　Example study subjects for young researchers
  ■Development of high-sensitivity beam profile monitors
  ■Development of high-precision magnetic field monitors
  ■Development of high-sensitivity electric field monitors
　　　　　

Masaya Miyahara (Research Location: KEK Tsukuba, Japan)
Development of an analog/digital-mixed signal ASIC using high-speed ADCs for various physics experiments. Seeking candidates who are interested in reconfigurable analog ASICs or design automation techniques for analog circuits.

　Example study subjects for young researchers
  ■Design of small-scale DAQ system using reconfigurable ASICs for particle detectors.
  ■An ASIC design for particle detectors using automated analog circuit design environment.
　　　　　

Yu Nakahama (Research Location: KEK Tsukuba, Japan)
Developments of cutting-edge machine-learning tools and their applications to the particle-physics analyses of the LHC-ATLAS data and detector-system developments.

　Example study subjects for young researchers
  ■The application of machine-learning tools to the physics analyses, such as the studies of
　　the Higgs boson properties and searches for new physics phenomena long-lived particles and
　　model-independent new-phenomena.
  ■The application of machine-learning based algorithms in mass production and testing of
　　the pixel detector modules for the LHC-ATLAS upgrade.
  ■The commissioning of new online selections for Higgs-boson pair production events using
　　the LHC collision data.
  ■The development of machine-learning based algorithms and their implementation in
　　accelerators such as FPGA and GPU. 　　　　　

Kazunori Nakayama (Research Location: KEK Tsukuba, Japan)
I am working on theoretical particle physics and cosmology with topics including inflation, dark matter, axion, and new particle search. Seeking candidates interested in interdisciplinary research fields, including particle physics and condensed matter physics, and their applications to new ideas for detecting light dark matter or other new particles.

　Example study subjects for young researchers
  ■Early universe physics and dark matter
  ■New idea and simulation for dark matter detection
  ■Calculation of Casimir force 　　　　　

Tatsumi Nitta (Research Location: KEK Tsukuba, Japan)
Developments in superconducting qubits and cavities for particle physics experiments are of interest. These include entangled qubit arrays, B-field resilient qubits, higher frequency qubits, and high-Q superconducting cavities operating at the quantum regime.

　Example study subjects for young researchers
  ■Fabrication and process development of superconducting qubits in cleanrooms
  ■Measuring superconducting qubits and cavities at QUP 　　　　

Tadayuki Takahashi (Research Location: KEK Tsukuba, Japan)
Our group develops advanced semiconductor radiation detectors and integrated readout systems for next-generation X-ray and gamma-ray instrumentation. We focus on high-energy-resolution CdTe and Si detectors, Compton imaging systems, and precision radiation measurement technologies for astrophysics and particle, nuclear and atomic physics experiments.
Our research spans fundamental detector physics, front-end ASIC development, and full system integration. In addition to fundamental research, we extend these technologies to interdisciplinary applications, including medical imaging (SPECT/CT), environmental radiation monitoring, and industrial non-destructive analysis

　Example study subjects for young researchers
  ■ High-energy-resolution semiconductor detector development: R&D, fabrication studies, and performance characterization of pixel and strip detectors for X-ray and gamma-ray detection.
  ■ Si/CdTe Compton camera development: System integration, calibration, simulation, and performance optimization for MeV gamma-ray imaging and polarization measurements.
  ■ Readout systems for radiation detector ASICs: Development of hardware and software systems for reading out radiation detector ASICs.
  ■ Medical and industrial applications of semiconductor detectors: Application of Compton imaging and high-resolution gamma detection to SPECT, small-animal imaging, and radiation monitoring. 　　　　　

Volodymyr Takhistov (Research Location: KEK Tsukuba, Japan)
Research at the intersection of theoretical particle physics, astro-particle physics/astrophysics, and cosmology. Topics ranging from dark matter, neutrinos, and experiments for probing fundamental physics to gravitational waves and black holes. Preferred candidates would be interested in interdisciplinary research, developing new theoretical ideas as well as connecting them with observations. Projects focusing on data analysis and simulations are also possible.

　Example study subjects for young researchers
  ■Dark matter detection (direct and indirect), production
  ■Formation and signatures of primordial black holes
  ■Experimental signatures of physics beyond the Standard Model, especially in neutrino experiments
  ■Neutrinos (including sterile neutrinos) in laboratories, astrophysics and cosmology
  ■Gravitational wave sources (cosmology, astrophysics) and their detection
  ■Fundamental physics with cosmic ray interactions and astrophysical transients
  ■Fundamental physics with precision instruments, table-top, and space-based experiments
  ■Signatures and production of axions and other new particles, including exotics (e.g. monopoles)