• About
  • Contact Us
  • Terms and Conditions
  • Privacy Policy
Thursday, January 28, 2021
Very Engineering
  • Home
  • Engineering
    • All
    • Design
    • GD&T
    • Know-How
    • Materials
    Helium - Explanation, uses and properties

    Helium – Definition, Properties, Application, and Effects on Us

    Hydrogen

    Hydrogen – Basics, Properties, and Application

    ductility gold

    What Is Ductility? A Super-Simple Explanation Of This Important Property

    Platinum

    Platinum – A Simplified Introduction, Properties, and Application

    Straightness- Beginner’s Guide to Understand GD&T Straightness

    Straightness- Beginner’s Guide to Understand GD&T Straightness

    Aluminum Oxide Glass is harder than Steel

    New Aluminum Oxide Glass is harder than Steel and Still Flexible

  • Manufacturing
  • Entertainment
    A hotel in Japan offers $ 1 in exchange for sleeping on YouTube

    A hotel in Japan offers $ 1 in exchange for sleeping on YouTube

    human face like fish

    Human Face like Fish Spotted in China

  • Automobile
  • Science
  • Lifestyle
    • All
    • Health
    A new vaccine for COVID-19 from Moderna showed 95% effectiveness

    A new vaccine for COVID-19 from Moderna showed 95% effectiveness

    FoMo

    Fearing of Missing Out? Redesigning social media platforms to reduce ‘FoMO’

    how to understand tracking of your heart rate

    Tracking your heart rate? How to Understand the numbers?

    rooftop garden hospital

    The hospital with the largest rooftop farm for patients in Boston

    rev ocean

    Rev Ocean, the largest yacht in the world that cleans the oceans

    Beauty is subjective

    Beauty is subjective: the algorithm says it

    Trending Tags

    • Golden Globes
    • Game of Thrones
    • MotoGP 2017
    • eSports
    • Fashion Week
  • Technology
No Result
View All Result
  • Home
  • Engineering
    • All
    • Design
    • GD&T
    • Know-How
    • Materials
    Helium - Explanation, uses and properties

    Helium – Definition, Properties, Application, and Effects on Us

    Hydrogen

    Hydrogen – Basics, Properties, and Application

    ductility gold

    What Is Ductility? A Super-Simple Explanation Of This Important Property

    Platinum

    Platinum – A Simplified Introduction, Properties, and Application

    Straightness- Beginner’s Guide to Understand GD&T Straightness

    Straightness- Beginner’s Guide to Understand GD&T Straightness

    Aluminum Oxide Glass is harder than Steel

    New Aluminum Oxide Glass is harder than Steel and Still Flexible

  • Manufacturing
  • Entertainment
    A hotel in Japan offers $ 1 in exchange for sleeping on YouTube

    A hotel in Japan offers $ 1 in exchange for sleeping on YouTube

    human face like fish

    Human Face like Fish Spotted in China

  • Automobile
  • Science
  • Lifestyle
    • All
    • Health
    A new vaccine for COVID-19 from Moderna showed 95% effectiveness

    A new vaccine for COVID-19 from Moderna showed 95% effectiveness

    FoMo

    Fearing of Missing Out? Redesigning social media platforms to reduce ‘FoMO’

    how to understand tracking of your heart rate

    Tracking your heart rate? How to Understand the numbers?

    rooftop garden hospital

    The hospital with the largest rooftop farm for patients in Boston

    rev ocean

    Rev Ocean, the largest yacht in the world that cleans the oceans

    Beauty is subjective

    Beauty is subjective: the algorithm says it

    Trending Tags

    • Golden Globes
    • Game of Thrones
    • MotoGP 2017
    • eSports
    • Fashion Week
  • Technology
No Result
View All Result
Very Engineering
No Result
View All Result
Home Science Physics

Quantum Negativity Promises Ultra-Accurate Measurements

Ajay by Ajay
August 23, 2020
in Physics
3 min read
0
quantum metrology

Instead of a meter or a scale, in quantum metrology particles are used to interact with what you want to measure.

0
SHARES
27
VIEWS
Share on FacebookShare on Twitter

An international team of physicists has demonstrated that quantum particles can carry an unlimited amount of information about the things with which they interacted.

And a physical property, called “quantum negativity”, can exploit this information to make more accurate measurements than any “meter” can measure today – from molecular distances to gravitational waves.

Quantum Advantage in Postselected Metrology

The team is already working on devices that incorporate the discovery, with the aim of enabling much more accurate measurements in various technologies, from microscopes to quantum computers.

This will create fundamental instruments for the nascent quantum metrology , which uses the behavior of subatomic particles to make ultra-accurate measurements – metrology is the science of estimates and measurements.

To understand how this is done, it is necessary to take a look at the “quantum way” of looking at things.

Several quantum technologies already in use could improve with the new measurements.

Quantum Negativity

We are used to dealing with probabilities, ranging from 0% (it never happens) to 100% (it always happens). To explain the results of the quantum world, however, the concept of probability needs to be expanded to include the so-called quasi-probability, which can be negative.

This quasi-probability allows quantum concepts – such as Einstein’s “ghostly action at a distance” and particle-wave duality – to be explained in an intuitive mathematical language. For example, the probability that an atom is in a certain position and travel at a specific speed can be a negative number, such as -5%.

An experiment whose explanation requires negative probabilities is said to have “quantum negativity”. David Shukur and his colleagues have now demonstrated that this quantum negativity can help make more accurate measurements.

All metrology needs instruments, which can be rulers, thermometers etc. Quantum metrology, however, needs quantum particles acting as probes, which are then put to interact with the thing being measured. Then, the particles are analyzed by a detection device to interpret the measurement.

“We adapted standard information theory tools for near-probabilities and showed that filtering quantum particles can condense information from a million particles into one,” explained David Arvidsson, from the University of Cambridge, UK. “This means that detection devices can operate at their optimal inflow rate and receive information corresponding to much higher rates. This is prohibited under normal probability theory, but quantum negativity makes this possible.”

Quantum Metrology

An experiment carried out by the team at the University of Toronto, Canada, has already begun to build the technology to use these new theoretical results.

The goal is to create a device that uses single photon laser light to provide incredibly accurate measurements of optical components. These measurements are crucial for the creation of new advanced technologies, such as photonic quantum computers .

Quantum metrology can also improve measurements of more trivial things, including distances, angles, temperatures and magnetic fields.

And these more accurate measurements can lead to better and faster technologies. For example, many technologies depend on the precise alignment of components or the ability to detect small changes in the electric or magnetic fields. Greater precision in mirror alignment can allow for more accurate microscopes or telescopes, and better ways to measure the Earth’s magnetic field can lead to better navigation tools.

SOURCE

Article: Quantum advantage in postselected metrology
Authors: David RM Arvidsson-Shukur, Nicole Yunger Halpern, Hugo V. Lepage, Aleksander A. Lasek, Crispin HW Barnes, Seth Lloyd
Magazine: Nature Communications
Vol .: 11, Article number: 3775
DOI: 10.1038 / s41467-020-17559-w

Tags: Quantum advantage in postselected metrologyQuantum negativity
Previous Post

Giant Lava Tubes in Moon and Mars can fit the entire city

Next Post

The "Extinct" Elephant Shrew Reappears after 50 years

Ajay

Ajay

Mechanical engineer who loves to write about science and technology based in Bangalore, India.

Related Posts

Light is stored and transported for the first time
Physics

Light is stored and transported for the first time

November 1, 2020
plasma technology
Physics

Plasma Technology: This scientist Claims to have Invented an Engine that Turns Electricity Directly into Propulsion

September 1, 2020
Tesla coil
People & Profiles

Nikola Tesla – The Fantastic Life of Greatest Genius

August 30, 2020
Next Post
Elephant Shrew

The "Extinct" Elephant Shrew Reappears after 50 years

Discussion about this post

  • 186 Fans
  • 151 Followers
">
ADVERTISEMENT
  • Trending
  • Comments
  • Latest
GD&T

GD&T: The Beginner’s Guide to Geometric Dimensioning and Tolerancing

August 14, 2020
fillet and chamfer

Fillets and Chamfers – How to Choose it?

May 21, 2019
flatness-gd&t

Flatness – All You Need to Know about GD&T Flatness.

June 2, 2020
quick guide to circularity and cylindricity gd&t

Circularity & Cylindricity – Quick Guide to understand GD&T

June 2, 2020
Jeff Bezos Biography

Jeff Bezos – Amazon, Blue Origin and Quest for Fantastic Future

0
Why it is So Hard To Detect Asteroids Heading Towards Earth?

Why it is So Hard To Detect Asteroids Heading Towards Earth?

0
fillet and chamfer

Fillets and Chamfers – How to Choose it?

0
deepfake video

Deepfake Videos Look So Real – We Should be More Careful on What we Trust from Internet

0
A new vaccine for COVID-19 from Moderna showed 95% effectiveness

A new vaccine for COVID-19 from Moderna showed 95% effectiveness

November 16, 2020
6G communications

6G Communications Receivers Begin to be Tested

November 1, 2020
Superconductivity for the first time at room temperature

Superconductivity for the First Time at Room Temperature

November 1, 2020
Almost indestructible beetle helps design better vehicles and machines

Almost Indestructible Beetle Helps Design Better Vehicles and Machines

November 1, 2020

Recent News

A new vaccine for COVID-19 from Moderna showed 95% effectiveness

A new vaccine for COVID-19 from Moderna showed 95% effectiveness

November 16, 2020
6G communications

6G Communications Receivers Begin to be Tested

November 1, 2020
Superconductivity for the first time at room temperature

Superconductivity for the First Time at Room Temperature

November 1, 2020
Almost indestructible beetle helps design better vehicles and machines

Almost Indestructible Beetle Helps Design Better Vehicles and Machines

November 1, 2020
Very Engineering

© Copyright 2019 www.veryengineering.com

Navigate Site

  • About
  • Contact Us
  • Terms and Conditions
  • Privacy Policy

Follow Us

No Result
View All Result
  • Science
  • Mobile
  • Technology
  • People & Profiles
  • Engineering
  • Design
  • Manufacturing

© Copyright 2019 www.veryengineering.com

Login to your account below

Forgotten Password?

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

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

Log In