• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Saturday, August 2, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Science

Faster method to read quantum memory

Bioengineer by Bioengineer
February 25, 2019
in Science
Reading Time: 3 mins read
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

Scientists at Aalto University and VTT have developed a faster way to read information out of qubits, the basic building blocks of a quantum computer

IMAGE

Credit: Aalto University

The potential computing revolution that quantum computers have long promised is based on their weird property called superposition. Namely, qubits can take both logical states 0 and 1 simultaneously, on top of any value in between. By mastering superpositions of the whole quantum memory, quantum computers can quickly solve problems that would require too much computing time from regular computers working with simply 0s and 1s.

However, qubits are sensitive, and currently hold quantum information for less than a millisecond at a time, even when kept frozen at temperatures colder than the dark side of the moon. To extract any useful information, the method that reads information from qubits must take the least amount of time as possible, allowing as few errors as possible.

Joni Ikonen, a PhD student at Aalto University, has developed a new method that helps do just that. Until now, the method used to read information from a qubit was to apply a short microwave pulse to the superconducting circuit containing the qubit and then measure the reflected microwave. After 300 nanoseconds, the state of the qubit can be deduced from the behavior of the reflected signal.

The new method applies an extra microwave pulse at the same time to the qubit itself, as well as to the circuit attached to the qubit. By using two pulses instead of one, the team at Aalto was able to make the reflected pulse reveal qubit states substantially faster than when they only applied a single pulse.

Caption: The two quantum states, here represented by red and blue arrows, separate faster and can be read quicker when the system is pulsed with two microwaves

‘We were able to complete the readout in 300 nanoseconds in our first experiments, but we think that going below 100 nanoseconds is just around the corner,’ says Joni Ikonen.

By improving the speed and accuracy of the information retrieved from qubits, scientists may be able to move closer to realising the promise of useful quantum computing.

‘This is an amazing result in getting the slippery qubits in order. I hope that it will help the community in the future to reach quantum supremacy and error correction, the path to a quantum computer of practical value,’ says Dr. Möttönen, who co-supervised the work with Dr. Jan Goetz.

###

For further information contact:

MSc Joni Ikonen

Quantum Computing and Devices Group, PhD student

Aalto University

[email protected]

Mobile: +358400539317

Languages: English, Finnish

Dr Mikko Möttönen

Quantum Computing and Devices Group, Group Leader

Aalto University

Mobile: +358505940950

[email protected]

Languages: English, Finnish

https://www.aalto.fi/department-of-applied-physics/quantum-computing-and-devices-qcd

Dr Jan Goetz

Quantum Computing and Devices Group, Research Fellow

Aalto University

[email protected]

Mobile: +358503003445

Languages: German, English

Media Contact
Joni Ikonen
[email protected]

Related Journal Article

http://dx.doi.org/10.1103/PhysRevLett.122.080503

Tags: Chemistry/Physics/Materials SciencesComputer Science
Share12Tweet7Share2ShareShareShare1

Related Posts

Five or more hours of smartphone usage per day may increase obesity

July 25, 2019
IMAGE

NASA’s terra satellite finds tropical storm 07W’s strength on the side

July 25, 2019

NASA finds one burst of energy in weakening Depression Dalila

July 25, 2019

Researcher’s innovative flood mapping helps water and emergency management officials

July 25, 2019
Please login to join discussion

POPULAR NEWS

  • Blind to the Burn

    Overlooked Dangers: Debunking Common Myths About Skin Cancer Risk in the U.S.

    60 shares
    Share 24 Tweet 15
  • Dr. Miriam Merad Honored with French Knighthood for Groundbreaking Contributions to Science and Medicine

    46 shares
    Share 18 Tweet 12
  • Study Reveals Beta-HPV Directly Causes Skin Cancer in Immunocompromised Individuals

    38 shares
    Share 15 Tweet 10
  • Sustainability Accelerator Chooses 41 Promising Projects Poised for Rapid Scale-Up

    35 shares
    Share 14 Tweet 9

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Strawberry Notch 1 Protects Neurons by Regulating Yeats4

Revolutionary AI Tool Requires Minimal Data to Analyze Medical Images

Innovative Acid-Base Bifunctional Catalyst Enhances Production of Essential Lithium-Ion Battery Material

  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.