So super achy is an acronym stands for swing up Sup of
quantum emitter ER, population. It's a super project we're doing
and I want to explain to you what this is about.
So let me first set the background.
The idea is we want to do quantum communication, but
instead of communicating like via the telephone wire or by the
optical fibre, we want to use quantum light.
Now. So quantum light is a single
photon that basically is the smallest portion of light.
Now all these properties which I talked about which are now
relevant that they come into that they now going to, we're
going to want to harness them, we want to make use of them and
why do we want to use that? If we do that, we have a secure
communication. So if we're talking and it would
be a secure line and come, one would tap in and listen to our
very private conversation. We would not see that person,
but we wouldn't know. We would have been listened to
and remember all these movies which are like you've seen
Enigma, which was like all about the here communication.
We now understand how important secure communication is and the
quantum communication is 1 idea how to make communication super
secure, like from the fundamental ideas of physics
secure. And there's a different way of
so cryptography, I give you a key, someone could spell it and
decrypt our messages. This is what happened a lot of
time. Now, the secure way, how to
distribute it, on which way it goes.
You can copy a regular P that's easy for if it's a line of
numbers, you can copy that just with your notebook.
You cannot do that in quantum mechanics.
Why not? Wow.
There's. So there's the theorem, which is
actually called no cloning theory.
We rely on that. It's more complicated than that.
But the idea is in quantum mechanics, there's not just
zeros and one that's from a classical computer, but you can
have everything in between. That is called a phase or a
coherent superposition. But the third thing is you can
still just measure 0 and one, but say it was in the middle, it
was half zero, half 1. So it's 5050.
You can get one or the other. Yeah, that's one thing we named.
So you can make a couple of repetitive measurements and
thereby get the statistics and you will know that instead just
giving 5050 regularly, you took the quantum 5050.
And this is where it all relies upon.
And then this was the first proposal.
It was given like 40 years ago and now we're trying to
implement that. And they're more complicated of
these proposals, but you cannot copy the quantum state because
while measuring it, you need to destroy it and then
reconstructing it is tough. You have the key, I have the
key, but nobody has copied it. What you're working on is more
about the securing the communication.
Oh. Oh this is so cool.
That's why it is super quantum. That's not why at Cooper Quantum
we need these single photons, these little bits off of light.
You go there that a requirement to make all this happen, which I
just told you about, correct. And now to get that, what we can
take is what is called a quantum emitter.
That can be an atom and you can excite it on real citations that
will lose it expectation. It will emit the single photo.
So now the question is, how are you excited?
Imagine if you want to go up in the swimming pool, you want to
go up the ladder and jump in the pool.
That's a similar process because you excite yourself and the pool
splash is basically the single photo.
You're taking a ladder to go up. Yes, yes.
And the ladder should be probably the same size as the
tower. Yes, yes, that's how we do.
That's what people have done before.
You can take a letter which is a little bit higher.
That would be okay. Yes, and we can, that's okay.
What we do now is we take 2 letters, but both are too short.
There's a little bit too short. Just like you try to stretch, it
doesn't work. So basically we attach the
letters in a smart way to each other and you have to jump from
one to the other to get up. So super achy is an acronym
stands for swing up Sup of quantum emitter ER population
the. Swing up quantum emitter Yes and
the R of the. Oh, this is so cool.
Oh, OK. OK, OK, this is cool.
OK, now I will understand all the jokes moving forward.
Thank you. So we just published that two
years ago. That's 2 1/2 there.
And it was very unsearched for that was very surprising to
everybody, but also very much needed to everybody.
So people really went to the lab immediately after we we brought
it out and tried to measure it and it worked.
So this is the best thing. If you're a citizen, you propose
something which you think is like, totally just your mind,
and then it works and you're like, yeah.
We hope you enjoyed this snippet.
Check out the full episode by following the link in the show
notes.