東京大学｜低温科学研究センター

Shared use equipments that support and accelerate
research and development of quantum technology Millikelvin Quantum Platform MILLIKELVIN
QUANTUM
PLATFORM

News

  • Due to the recent rise in electricity rates, we have revised usage charges (applicable from June 2023).

  • Off-campus joint use is scheduled to start at the end of May 2022.

ABOUT

Millikelvin Quantum Platform is a joint use facility for anyone who needs a very low temperature environment down to 10 millikelvin to develop quantum technologies such as quantum computers and quantum sensors.

  • Fully equipped with microwave electronics suitable for superconducting qubit research
  • Can also be used for research on physical properties of new quantum materials
    (3T superconducting magnet)
  • Available to corporate researchers as well as researchers of universities and public research institutes
  • Support by staffs expert at millikelvin experiments

This is the ideal shared equipment for researchers who have ideas and materials that will lead to new quantum technologies and qubits, but do not have ready-to-use dilution refrigerators or microwave electronics. Companies who are interested in testing the performance of their products with superconducting qubits are also welcome.

INSTRUMENTS

Dilution
Refrigerator

3He-4He dilution refrigerator BlueFors LD400

Tmin

10mK

Cooling power

400µW @100mK

Experimental space

φ270×477mm

Microwave coaxial cables
Input
24(with attenuators at all stages)
Output
4(superconducting coaxial cable＋low temperature preamplifier)
Low temperature coaxial cables

12

THERMOCOAX cables

12

Optical fiber

4(λ=1.5µm)

Thermometers

Various resistance thermometers, Pt-NMR thermometer

Superconducting magnet

Bmax=3.0T, bore diam.φ25

Measuring
Instruments

Microwave electonics

Oscillators (21ch)

Holzworth Instrumentation HS9004B/OPT-X4×3, HS9008B/OPT-E8×1

Arbitrary waveform generator
(16ch)

Keysight Technologies M3202A×4
(with CH4, CLF, M20, K41, FP1, and HV1 options)

Single-sideband modulators

Polyphase Microwave SSB4080A×2, SSB80120A×5,SSB70100A×10, SSB0550A×5

Image-reject mixers

Polyphase Microwave IRM4080B×2, IRM80120B×5

Digitizers

Keysight Technologies M3102A×2
(with CH4, CLF, M20, K41, FP1, and HV1 options)

Vector network analyzer

Keysight Technologies M9804A-200

Spectrum analyzer

Keysight Technologies M9804A-090

Physical property measurement electronics

AC Resistance Bridge

Lake Shore Cryotronics 372S-6

AC/DC Current and Voltage Source

Lake Shore Cryotronics 155-AC

Digital Multimeter

Keysight Technologies 34470A-100

Lock-In Amplifier (analog)

Stanford Research Systems SR2124✕2

Frequency counter

Stanford Research Systems SR625

For other physical property measurement systems, click here

The shared use equipment of this platform was introduced by the Ministry of Education, Culture, Sports, Science and Technology.「先端設備整備補助事業」

Dilution
Refrigerator

Measuring
Instruments

RESEARCH &
DEVELOPMENT

Hardware development for quantum computers and quantum sensors covers a wide range of fields, including microfabrication, multiplexed signal processing, microwave cryoelectronics, and cryogenic technology. Operated by Cryogenics Research Center, an Interdisciplinary Research Institute at The University of Tokyo, this platform actively mediates interdisciplinary collaborations.

As an expert on cryogenic technology, we are also participating in such interdisciplinary collaborations and working on our own research and development of quantum technology.

more details

FOR
USERS

Usage period

weekly basis (Please contact us for long-term use)

Schedule
Usage charge*
  • On campus

    21,000Yen/day

  • Off-campus public research institutes

    26,000Yen/day

  • Company

    36,000Yen/day

Excluding the installation and uninstallation period

Application for usage

Application form