This article was posted by CrystalWind.ca

A+ A A-

Scientists ‘Freeze’ Light For an Entire Minute

scientists_freeze_light

In what could prove to be a major breakthrough in quantum memory storage and information processing, German researchers have frozen the fastest thing in the universe: light. And they did so for a record-breaking one minute. It sounds weird and it is. The reason for wanting to hold light in its place (aside from the sheer awesomeness of it) is to ensure that it retains its quantum coherence properties (i.e. its information state), thus making it possible to build light-based quantum memory.

And the longer that light can be held, the better as far as computation is concerned. Accordingly, it could allow for more secure quantum communications over longer distances. Needless to say, halting light is not easy — you can't just put in the freezer.

Light is electromagnetic radiation that moves at 300 million meters per second. Over the course of a one minute span, it can travel about 11 million miles (18 million km), or 20 round trips to the moon. So it's a rather wily and slippery medium, to say the least. But light can be slowed down and even halted altogether.

And in fact, researchers once kept it still for 16 seconds by using cold atoms. For this particular experiment, researcher Georg Heinze and his team converted light coherence into atomic coherences.

They did so by using a quantum interference effect that makes an opaque medium — in this case a crystal — transparent over a narrow range of light spectra (a process called electromagnetically induced transparency (EIT)). The researchers shot a laser through this crystal (a source of light), which sent its atoms into a quantum superposition of two states.

A second beam then switched off the first laser, and as a consequence, the transparency. Thus, the researchers collapsed the superposition — and trapped the second laser beam inside.

 

light_pulse_graph

And they proved the accomplishment by storing — and then successfully retrieving — information in the form of a 100-micrometer-long picture with three horizontal stripes on it.

"The result outperforms earlier demonstrations in atomic gases by about six orders of magnitude and offers exciting possibilities of long-storage-time quantum memories that are spatially multiplexed, i.e., can store different quantum bits as different pixels," notes physicist Hugues de Riedmatten in an associated Physics Review article.

In future, the researchers will try to use different substances to increase the duration of information storage even further.


Source Here

Read the entire study at Physical Review Letters: "Stopped Light and Image Storage by Electromagnetically Induced Transparency up to the Regime of One Minute."

Sources: New Scientist - American Physical Society

 


CrystalWind.ca is free to access and use.
Please support us with a small gift of $11.11 or $22.22 or $33.33. 

or
Please buy us a coffee!
Thank you!
ॐ Namasté - Blessings!
"Life is an echo, what you send out comes back."
© 2008-2021 crystalwind.ca. All rights reserved.
Pin It

Featured Writers

Free Reading Here!!

crystal-wind-oracle-mobile-app
 
Cut Through The Illusions!
Available On The
Apple  / Android / Amazon
NEW Expanded Version - 53 cards!

Articles: AndEl: Technology

Who is Online Now

We have 1806 guests and no members online

Featured This Month

Page:

Taurus Mythology

Taurus Mythology

The Taurus Myth The Taurus myth is most often interpreted as the story of Z... Read more

Bright Beltane Blessings!

Bright Beltane Blessings!

The wheel turns to Beltane, also known as Mayday, marking the beginning of S... Read more

Kunzite

Kunzite

The Love Commitment Stone Kunzite has a pronounced calming effect on the he... Read more

Birth Totem - Beaver

Birth Totem - Beaver

Birth Totem Beaver Birth dates: April 20 - May 20 Birth Totem is: Beaver ... Read more

Taurus

Taurus

TAURUS April 20 - May 20 Spirit: Conservation, methodical, to enjoy comfor... Read more

Rhodonite

Rhodonite

The Hate Remedy Stone Rhodonite symbolizes self-realization. It is known as... Read more

Jade

Jade

The Heart Path Stone Jade has an overall balancing effect on the heart. It ... Read more

The Time of No Time: Beltane!

The Time of No Time: Beltane!

Around the medicine wheel of life we go, from season to season (solstice to ... Read more

Frogs Return Moon

Frogs Return Moon

Beaver – Chrysocolla - Blue Camas – Blue April 20 – May 20 The Frogs Retur... Read more

Sun in Taurus

Sun in Taurus

Sun in Taurus April 21 through May 21 An Overview of Sun Sign Characteristi... Read more

Rose Quartz

Rose Quartz

The Self Love Stone Rose quartz is an effective stone for reducing all aggr... Read more

Emerald

Emerald

The Heart And Love Stone Emerald brings soothing harmony to ... Read more

Litha Sabbat - The Summer Solstice

Litha Sabbat - The Summer Solstice

Gardens are blooming, and summer is in full swing. Fire up the barbeque, turn ... Read more

Beltane

Beltane

Beltane Ritual Celebrated May 1st Beltane is also known as May Day, Walpurg... Read more

The Willow Tree - April 15th - May 12th

The Willow Tree - April 15th - May 12th

The Fire Festival Of Beltane Celtic Symbol : The Sea Serpent Zodiac Degree... Read more

© 2008-2021 CrystalWind.ca. Site Creation by CreativeInceptions.com.
X

Right Click

No right click