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Quantum Manipulations

I work in information technology, but my first love is science.  Particularly the hard sciences of physics and cosmology.

There've been a series of experiments over the last few years that have demonstrated quantum manipulations of light and matter that approach the macroscopic realm.

A recent result from Harvard (HT to Dion Stewart for the link) has gotten a lot of (incorrect) play.  It involves absorbing photons with a Bose-Einstein condensate, then reproducing identical photons at some distance in time and space.  I've been reading about these experiments with a lot of interest, along with the experiments going the "other" direction: supraluminal group phase travel.

I wish the science writers would find a new metaphor, though.  They all talk in terms of "stopping light" or "speeding up light".  None of these have to do with changing the speed of light, either up or down.  This is about photons, not the speed of light.

In fact, this latest one is even more interesting when you view it in terms of the "computational universe" theory of Seth Lloyd.  What they've done is captured the complete quantum state of the photons, somehow 'imprinted' on the atoms in the condensate, then recreated the photons from that quantum state.

This isn't mere matter-energy conversion as the headlines have said.  It's something much more.

The Bose-Einstein condensate can be described as a phase of matter colder than a solid.  It's much weirder than that, though.  In the condensate, all the particles in all the atoms achieve a single wavefunction.  You can describe the entire collection of protons, neutrons and electrons as if it were one big particle with its own wavefunction.

This experiment with the photons shows that the photons' wavefunctions can be superposed with the wavefunction of the condesnate, then later extracted to separate the photons from the condensate.

The articles somewhat misrepresent this as being about converting light (energy) to matter, but its really about converting the photon particles to pure information then using that information to recreate identical particles elsewhere.  Yikes!

A path to a product

Here's a "can't lose" way to identify a new product: Enable people to plan ahead less. 

Take cell phones.  In the old days, you had to know where you were going before you left.  You had to make reservations from home.  You had to arrange a time and place to meet your kids at Disney World.

Now, you can call "information" to get the number of a restaurant, so you don't have to decide where you're going until the last possible minute.  You can call the restaurant for reservations from your car while you're already on your way.

With cell phones, your family can split up at a theme park without pre-arranging a meeting place or time.

Cell phones let you improvise with success.  Huge hit.

GPS navigation in cars is another great example.  No more calling AAA weeks before your trip to get "TripTix" maps.  No more planning your route on a road atlas.  Just get in your car, pick a destination and start driving.  You don't even have to know where to get gas or food
along the way.

Credit and debit cards let you go places without planning ahead and carrying enough cash, gold, or jewels to pay your way.

The Web is the ultimate "preparation avoidance" tool.  No matter what you're doing, if you have an always-on 'Net connection, you can improvise your way through meetings, debates, social engagements, and work situations.

Find another product that lets procrastinators succeed, and you've got a sure winner.  There's nothing that people love more than the personal liberation of not planning ahead.