Entangling Particles With an Un-entangled Particle

Entanglement is weird.

Two particles that are entangled can co-ordinate with each other. Instantly.

So, let’s toss more weirdness on the fire, shall we?

Two researchers have shown that two distant particles can be entangled with a third particle that has never been entangled with either of them.

In their own words:

“It was shown that two distant particles can be entangled by sending a third particle never entangled with the other two [T. S. Cubitt et al., Phys. Rev. Lett. 91, 037902 (2003)]. In this paper, we investigate a class of three-qubit separable states to distribute entanglement by the same way, and calculate the maximal amount of entanglement which two particles of separable states in the class can have after applying the way.”

You can read the paper here.



Qbits and Qbiz: Writing the Quantum Computing Business Plan

Over the past couple months I’ve been helping to write a business plan for Artiste, a Quantum Computing software company…

And then re-writing it…

And then re-writing again…

Writing a business plan, or business plan summary, is always a challenge, but like everything in the quantum world, the QC business plan is a bit fuzzy.  There isn’t really a quantum computer available. And we’re creating software for it. Imagine the first propeller manufacturer looking for venture capital before the Kitty Hawk was still in the workshop and trying to convince those investors that that contraption was going to:

1) Fly

and 2) Create an industry that would easily produce a return on investment.

This is a similar situation. I believe that a quantum computer will eventually:

1) Fly… or at least compute

and 2) create an industry that will produce an amazing return on investment.

But, belief does not a business plan, make. The real benefit of the business plan isn’t necessarily the payoff of putting it in front of an investor, the real benefit is the research and the results of the research. It’s a discovery process no less important than product R and D.

Just a for instance: When I started the plan, I thought encryption and security are the big beneficiaries of quantum computing. While quantum computing will likely have an enormous effect in those areas, they are a drop in the bucket. I’m more convinced that industries–like medical, biotechnology, technology, and finance–that are thirsting for more computing power will turn the power of quantum computing into breakthroughs.

These are trillion-dollar industries today, folks, and producing an array of new technology with simple and super computing.

Imagine what they’ll be like when they are hooked up to the massive potential of quantum computing?

God Doesn’t Play Dice. But What About Poker?

Albert Einstein hated… hated… hated quantum mechanics because he said he didn’t believe that God plays dice.

Which brings up the obvious question: what does Einstein have against dice? It’s a perfectly fun game. Did he get ripped off in a back alley craps game? Did he just have bad luck, or dislike cubed objects? The questions are tantalizing.

Anyways, maybe God doesn’t play dice. I think he may use decoherence in a eternal probabilistic game of poker.

Perhaps it’s one way to shuffle the deck and divvy out the next hand? It’s a far more apt description than shaking up the dice. Poker, after all, requires an interaction with the cards to determine a hand. You can bluff. And seek new combinations. Pass and wait for a better hand. There’s some strategy, after all. Dice is more–what you see is what you get.

That would be a far more satisfying–to me, at least–compromise in the determinism and indeterminism debate. In a perfectly deterministic universe, there would be no surprise at all. And how fun would that be? A totally indeterministic universe would be chaotic. I like to call it Parking Lot Physics. Have you ever been in a WalMart parking lot during the holidays. Where is your God there?

But there seems to be evidence for a third way–a mixture of surprise and skill–that drives our universe.

We have a mixture of entanglement and decoherence. Of superposition and shuffling. Of order and entropy.

But whose shuffling the deck? Whose shaking the dice?

That’s for another day.