back to article Boffins have constructed a new LIGHT SABRE. Their skills are complete

Top boffins in the US say they have managed to make light behave in the same way as solid matter – and they've saved us the trouble by suggesting that this is pretty much the same as building a working Jedi light sabre. "It's not an inapt analogy to compare this to light sabers," boasts Harvard physics prof Mikhail Lukin, one …

COMMENTS

This topic is closed for new posts.

Page:

  1. Gareth Perch
    FAIL

    Use The Force, Lukin

    Seriously - no Star Wars reference to the guy's surname in the title / subtitle / article?

    1. Ian Michael Gumby
      Coat

      Re: Use The Force, Lukin

      Funny you should mention star wars...

      While this probably isn't light saber tech... it could be used for true 3D vids and modeling.

      Would it fit the definition of holographic display?

      But you get the idea.

      The star wars reference... 'help me Obi Wan...'

      1. David 164

        Re: Use The Force, Lukin

        Now you mention it, this does sound like the foundational technology Holodecks in Star Trek, it would be a bit chilly in their through.

    2. C 18
      Facepalm

      Re: Use The Force, Lukin

      These aren't the droids you're Lukin for.

  2. Cliff

    If I was making a press release like this

    I would make damn sure I released it on April 1st - just to fuck with everyone who dismissed it as a joke.

    1. John Smith 19 Gold badge
      Unhappy

      Re: If I was making a press release like this

      "I would make damn sure I released it on April 1st - just to fuck with everyone who dismissed it as a joke."

      No can do.

      This academia.

      Publish or perish.

    2. Inventor of the Marmite Laser Silver badge

      Re: If I was making a press release like this

      Nah. I'd have released it on May 3rd. Then I could sign off with "May the fourth be with you"

  3. Anonymous Coward
    Anonymous Coward

    No "Lukin, I am your father" reference? Disappointed.

    1. breakfast Silver badge

      "Lukin, I am your fatherin," surely?

  4. Arachnoid

    So all one needs.......

    Is a good pair of insulated oven gloves and your good to go save the Universe

    1. Jan 0 Silver badge
      Headmaster

      Re: So all one needs.......

      but, I haven't got a "good to go save the universe".

      1. Great Bu

        but, I haven't got a "good to go save the universe".

        You can knock one up out of an apostrophe and the letter 'E'.....

  5. Z-Eden

    Jedi and force stuff side, what an interesting development. Wonder what kind of application photon matter would have or even if it is feasible for general use

    1. John 110
      Coat

      title. what title

      Hard-light holography. What do you think Mr Rimmer?

      1. Ben Rosenthal

        Re: Hard-light hologram

        Puncture repair kit on standby Mr Rimmer sir.

    2. John Smith 19 Gold badge
      Boffin

      " Wonder what kind of application photon matter would have"

      Read the link might be an idea?

      But the TL:DR answer is :

      "Particular applications of this technique include all-optical switching, deterministic photonic quantum logic and the generation of strongly correlated states of light9."

      1. Richard 81

        Re: " Wonder what kind of application photon matter would have"

        "Read the link might be an idea?"

        That's not really fair to say to someone when the article is behind a paywall, now is it? OK, so in this case an example did happen to be in the abstract, but still not everyone has a subscription to every journal. Of course, the authors could have gone open access, as we all should these days.

        1. tom dial Silver badge

          Re: " Wonder what kind of application photon matter would have"

          I wonder how much support the Harvard-MIT Center for Ultracold Atoms receives from the US government.

          1. Wzrd1 Silver badge

            Re: " Wonder what kind of application photon matter would have"

            "I wonder how much support the Harvard-MIT Center for Ultracold Atoms receives from the US government."

            If the research was US Government funded and not classified, it'd not be behind a pay wall. It would be openly available for all to read.

            Forget what law that was that required that one.

            For classified stuff, all bets are off, save that it wouldn't end up published for a generation or so.

    3. Not_The_Droids

      Duh

      Photon torpedoes, of course. Oh wait, that's Star Trek. Wrong universe, my bad.

    4. Wzrd1 Silver badge

      "Wonder what kind of application photon matter would have or even if it is feasible for general use"

      How about a holodeck?

      Light sabre.

      Hard light bridge.

      Hard light windows.

      Maybe a more energy efficient deflector, more efficient than a plasma window?

    5. Myvekk

      Solidified light... Hmmm, shields, physically interactive hologram, (EMH anyone?)

  6. Anonymous Coward
    Anonymous Coward

    Personally I've always considered light sabres to be magnetically confined plasma. Makes much more sense; "explains" how they cut, "explains" how they can't go through each other, "explains" the noise, etc.

    I'll get me coat.

    1. Thecowking

      Exactly

      In uni we worked out that the "Light" and the crystal were probably a laser which supplied the energy to create the plasma and keep it hot.

      The trigger activates the magnetic bottle, releases enough matter to become plasma which is then excited by the laser, electrons are diverted to one end of the bottle and possibly allowed to escape, where they interact with the atmosphere (creating the hiss-crackle as the blade is extended). The energy and mass lost when the blade interacts with the environment is why the laser has to be kept on and the blade continues to crackle as it's used.

      Might have been a sad git at uni. Probably still am.

      1. Suricou Raven

        Re: Exactly

        I gave a lot of thought to this myself, but concluded there was no way a sabre effect could be achieved.

        I have designed a force field, though. I think it would work. It just has a few minor practical issues, like requiring the entire output of a power station to generate a field big enough to block a corridoor, an a tendency to incinerate anything that touches it. But the theory would work: You could flip marbles at it and they would just bounce off.

        One day I will find a way to build it. I think I could run a small-scale prototype off no more than twenty kilowatts or so.

      2. Mike 16

        Re: Exactly

        You'll be wanting to read up on the work of Kenneth R. Shoulders then.

        Seriously.

        He was looking into building structures, including processors, from plasma back in the early 1960s.

    2. James Micallef Silver badge
      Thumb Up

      Yes, that certainly makes more sense than photons behaving as 'normal' matter. I suspect that a rod constructed of matter-photons would be as good a weapon as a broomstick.

      I might be wrong of course, it's been known to happen :)

    3. ElReg!comments!Pierre
      Coat

      One word to explain them all

      midi-chlorians

      1. Michael Habel

        Re: One word to explain them all

        midi-chlorians

        Didn't it just just pass its 30th anniversary recently?

    4. sisk
      Coat

      Not to mention the fact that lightsabers are HOT. They're hot enough to cauterize the wounds they make instantly, to melt blast doors, and to scorch pretty much anything they cut through. For that matter they don't really 'cut' so much as instantly melt a microscopic path through whatever they're used on. That's how hot they are.

      This light-matter stuff, on the other hand, sounds like it's cold. And by that I mean superconductor range temperatures. Which is pretty much the opposite of a lightsaber.

      Mine's the one with the Star Wars Encyclopedia in one pocket and the empty address book in the other.

    5. Captain DaFt

      One way I figured to build an actual light sabre would use a laser that, when focused, would be powerful enough to heat air to plasma.

      Then using a piezoelectric lens so that the focal point would be swept back and forth to generate the 'blade'.

      It'd look like a light sabre, burn through stuff, and make the crackling and vroom sounds.

      Unfortunately, sword fights wouldn't work, the 'blades' would pass through each other.

      Two major drawbacks:

      The handle would need to be hooked up to a rather unwieldy power source and cooling air supply. You'd look like you were dragging a vacuum cleaner around by the hose.

      Air tends to produce some nasty to breath compounds at that temperature, you'd need to wear a respirator to use it!

      1. Anonymous Coward
        Anonymous Coward

        "Air tends to produce some nasty to breath compounds at that temperature, you'd need to wear a respirator to use it!"

        Umm, like Darth Vader?

      2. Wzrd1 Silver badge

        "The handle would need to be hooked up to a rather unwieldy power source and cooling air supply."

        Cooling air supply? Highly inefficient. I'd use a liquid coolant.

        Since the air is already becoming unbreathable due to ozone, might as well use anhydrous ammonia for the coolant. ;)

      3. sisk

        The handle would need to be hooked up to a rather unwieldy power source and cooling air supply. You'd look like you were dragging a vacuum cleaner around by the hose.

        Canonically the first lightsabers (a few thousand years before Exar Kun and something like ten or fifteen thousand years before the movies) had a bulky backpack power supply about the size of a vacuum cleaner and a fat power cable going to the handle, so you're on the right track.

        *Yes, I truly am sad enough to know that much about the history of the Star Wars universe. As I've mentioned before I had way too much time on my hands when I was younger. This is just further proof of the fact.

      4. Anonymous Coward
        Anonymous Coward

        hooked up to a rather unwieldy power source

        I am sure I read in some Star Wars wiki that the first light sabers actually had to be tethered to a belt mounted power source ;-)

    6. Wzrd1 Silver badge

      "Personally I've always considered light sabres to be magnetically confined plasma."

      Briefly considered that back in the 1980's. Then, I considered how magnetic fields don't maintain annular confinement beyond a magnetic coil.

      Then, I considered multiple standing waves and a holographic reflector at the point...

      Finally, I considered it a matter of, "To hell with that idiocy. A blaster puts out a greater volume of fire."

      1. Suricou Raven

        A magnetic field can be shaped with a stream of high-energy charge particles. Think of the way the earth's field is distorted by the solar wind. You'd need a ridiculous amount of energy in the particles to a shape a field that strong, though. It certainly wouldn't be portable.

      2. Intractable Potsherd

        Only a fool brings a lightsabre to a blaster fight ...

        1. Pascal Monett Silver badge
          Coat

          Re: Only a fool brings a lightsabre to a blaster fight

          And only a jedi brings a lightsaber to a blaster fight and is the only one to walk away from it

          1. Anonymous Coward
            Devil

            Re: Only a fool brings a lightsabre to a blaster fight

            And only a marketing professional brings an EMP grenade and a slingshot to a blaster/lightsaber fight and walks away victorious :)

  7. Mike Moyle

    Crystals made of light...

    .... Could they be made to work as gates? Optical computing in its ultimate form.

    1. JetSetJim

      Re: Crystals made of light...

      More like gates on the end of footballers driveways for the ultimate bling

    2. Wzrd1 Silver badge

      Re: Crystals made of light...

      ".... Could they be made to work as gates? Optical computing in its ultimate form."

      You think too small. Gates and loads more. Think entire circuits, when holographic and magnetic techniques shape it.

  8. ElReg!comments!Pierre

    Not so similar...

    Surely an "object" made of "solidified" light would not leak visible photons?

  9. Qwelak
    Coat

    If this guy is Lukin ...

    does he have a father called Anake

    I'll get me Jedi robe

    1. Destroy All Monsters Silver badge

      Re: If this guy is Lukin ...

      That would be an accidental inon exchange.

  10. Anonymous Coward
    Anonymous Coward

    "wholly out of light"

    ... yeah - wholly out of light that is strongly coupled to rubidium atoms. So not /only/ out of light, which is what is strongly implied by "wholly out of light".

    I look forward to the Star Wars pre-pre-pre-prequels where proto-jedi whack each other over the head with clubs made out of ultracold-atom vacuum systems. :-)

    1. Paul Kinsler

      Re: "wholly out of light"

      The only way you get light to not travel at lightspeed is to make it interact with something. E.g. in water, visible light interacts with the water molecules, and it slows by about 30% (hence the refractive index of 1.5). To make light really slow, you have to get it to interact very strongly - in this case, using a specific frequency of light tuned to specific transitions in carefully managed rubidium atoms.

      This "slow light" therefore, is a rather misleading name - it isn't just light - it's a strongly coupled light-matter system, which some would prefer to call a polariton.

      I can therefore only assume the down votes were for the poor quality joke.

      1. TRT Silver badge

        Re: "wholly out of light"

        Of course, you could always expose photons to a strong thaumic field... that would slow it down very much.

    2. Intractable Potsherd

      Re: "wholly out of light"

      "... the Star Wars pre-pre-pre-prequels ..."

      Don't even joke about such things!!

      I'll have nightmares for weeks now ...

Page:

This topic is closed for new posts.

Other stories you might like