• Latest
  • Trending
New portable atomic clock from India offers accurate timekeeping at sea

New portable atomic clock from India offers accurate timekeeping at sea

23 October 2024
Paradip Port Authority hits milestone: Handles 41.12 MMT cargo

Data Story: Vessel Position Report

23 June 2025
Accenture forecasts slower growth as clients cut tech spending

Accenture forecasts slower growth as clients cut tech spending

23 June 2025
xAI’s Grok models are now on Oracle Cloud Infrastructure

xAI’s Grok models are now on Oracle Cloud Infrastructure

23 June 2025
Iran threatens to block Strait of Hormuz after US strikes

Iran threatens to block Strait of Hormuz after US strikes

23 June 2025
LIC Housing Finance reduces lending rates to 7.50% on new home loans

LIC Housing Finance reduces lending rates to 7.50% on new home loans

23 June 2025
Data Story: Indian spices prices

Data Story: Chilli exports highest among spices in FY25 from India

22 June 2025
Data Story: Cochin Port achieves highest ever cargo traffic in FY25

Data Story: Cochin Port achieves highest ever cargo traffic in FY25

22 June 2025
Group of shareholders ask investors to vote against Elon Musk’s pay package, says Report

Tesla to open first showroom in India this July

21 June 2025
Data Story: Global Oil Price Fluctuations

Data Story: Brent crude jumps 18% in 10 days amid Israel-Iran conflict

20 June 2025
SpaceX could hit $350 billion valuation

Testing failure adds to a growing list of Starship setbacks, what about Mars’ dream now?

20 June 2025
Paradip Port Authority hits milestone: Handles 41.12 MMT cargo

Shipping charges jump, what next?

20 June 2025
Data Story: Indian spices prices

Data Story: Indian spices prices

19 June 2025
  • Careers
  • Advertisement
Monday, June 23, 2025
  • Login
Data Biz Times
  • Data Story
  • Artificial Intelligence
  • Media Release
  • Technology
  • Business
  • Contact Us
No Result
View All Result
  • Data Story
  • Artificial Intelligence
  • Media Release
  • Technology
  • Business
  • Contact Us
No Result
View All Result
Data Biz Times
No Result
View All Result
Home Technology

New portable atomic clock from India offers accurate timekeeping at sea

by databiztimes.com
in Technology
Reading Time: 3 mins read
0
New portable atomic clock from India offers accurate timekeeping at sea

DBT Bureau

Pune, 23 Oct 2024

A team of researchers working with cold Rydberg atoms has improved quantum magnetometry, making atomic clocks and magnetometers more accurate and reliable for navigation, telecommunications, and aviation. Rydberg atoms are excited atoms with electrons at high energy levels, and scientists use a method called Electromagnetically Induced Transparency (EIT) to study them.

This new technique helps achieve better timekeeping and magnetic measurements, which are important for many applications.
Researchers at the Raman Research Institute (RRI) have leveraged the Doppler effect to their advantage and achieved a ten times enhanced response to the magnetic field while performing quantum magnetometry (phenomenon exploiting the quantum nature of light and atoms for precision measurement of magnetic fields) on thermal rubidium atoms using Rydberg Electromagnetically Induced Transparency (EIT) in a room temperature-based environment.

Electromagnetically Induced Transparency (EIT) is a fascinating phenomenon that makes an opaque medium transparent, can slow down light pulses to crawling speeds and even trap light inside atomic media. EIT has led to a myriad of important applications in precise atomic clocks, atomic magnetometers and quantum computation. EIT generally occurs in a three-level atomic system involving two atomic transitions addressed by a weak probe laser beam and a strong coupling laser beam.

Scientifically, interference occurs when a wave can travel between two points via multiple paths, either resulting in their enhancement or cancellation. On similar lines, an atom can transition between multiple quantized energy levels by different routes that can interfere. This determines the amount of light an atom absorbs.

Similar to the interference of light, where constructive interference gives bright fringes and destructive interference gives dark fringes, the probabilities of atomic transitions between these energy levels can also interfere destructively, known as quantum interference. It can result in atoms in a dark state not absorbing the probe light and thereby render the atomic medium transparent. This phenomenon is called Electromagnetically Induced Transparency (EIT).

Deploying Rydberg EIT, the researchers detected atoms in their highly excited (Rydberg) states. Rydberg Electromagnetically Induced Transparency has a Rydberg state as one of the energy levels involved in the EIT process. Rydberg EIT signals were used to measure the response of the Rydberg atoms to the external magnetic field.

“When the Rydberg EIT was observed in an unconventional configuration of the probe and the coupling beam, where the Doppler shift was not compensated, an enhanced response to the magnetic field was observed. It is the Doppler shift that causes a larger response of the Rydberg EIT signal to an externally applied magnetic field,” said Sanjukta Roy, Head of Quantum Optics with Rydberg Atoms Lab (QuORAL) at RRI, an autonomous institute of the Department of Science and Technology (DST).

Generally, Doppler shift is perceived as the change in frequency of a wave by a moving observer. When a laser beam flashes on atoms, their thermal motion leads to a Doppler shift – an atom moving towards the laser beam sees a higher frequency, whereas one moving away sees a lower frequency. This effect is generally assumed to be detrimental to sensing.

Cryogenically-cooled superconducting devices are useful for sensing ultra-weak magnetic fields.
Such Doppler-enhanced quantum Magnetometry offers a wide variety of applications ranging from geophysics to the detection of brain activity and mineralization to space explorations and archaeology.

databiztimes.com

databiztimes.com

Related Posts

Tech Mahindra partners with Hanab for IT modernization post-carve out

Tech Mahindra partners with Hanab for IT modernization post-carve out

by databiztimes.com
5 June 2025
0

DBT Bureau Pune, 5 June 2025 Tech Mahindra, a leading global provider of technology consulting and digital solutions to enterprises...

Silicon Labs and Wirepas surpass 10 million chipsets, powering industrial IoT at scale

Silicon Labs and Wirepas surpass 10 million chipsets, powering industrial IoT at scale

by databiztimes.com
4 June 2025
0

DBT Bureau Pune, 4 June 2025 Silicon Labs, the leading innovator in low-power wireless solutions, and Wirepas, a global leader...

Apple products transform care at Emory Healthcare | Company News

Apple products transform care at Emory Healthcare | Company News

by databiztimes.com
23 May 2025
0

DBT Bureau Pune, 23 May 2025 At Emory Hillandale Hospital in Lithonia, Georgia, Apple products are now the standard, marking...

Hexaware Earns AWS Data & Analytics Competency

Hexaware Earns AWS Data & Analytics Competency

by databiztimes.com
14 May 2025
0

DBT Bureau Pune, 14 May 2025 Hexaware, a global IT services and solutions provider, announced that it has achieved the...

DBT Bureau

Data Biz Times © 2025. All Rights Reserved.

Navigate Site

  • Media Release
  • Blog
  • Contact Us
  • Privacy Policy

Follow Us

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

Add New Playlist

No Result
View All Result
  • Media Release
  • Data Story
  • Business
  • Tech
  • Artificial Intelligence

Data Biz Times © 2025. All Rights Reserved.