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Monday, March 25, 2019< ^ >
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[15:12:13] <Suzanne (scribe)> Hi and welcome to QIRG at IETF 104!
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[15:15:23] <Suzanne (scribe)> slide deck is at https://datatracker.ietf.org/meeting/104/materials/slides-104-qirg-sessa-tutorial-on-quantum-repeaters-00
[15:15:29] <Suzanne (scribe)> on slide 4
[15:17:22] <Suzanne (scribe)> slide 5, Entanglement
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[15:18:04] <Suzanne (scribe)> slide 6
[15:18:36] <Suzanne (scribe)> 7 (Einstein!)
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[15:20:29] <Suzanne (scribe)> 10 (moving fairly fast through the slides, will try to keep up)
[15:23:19] <Suzanne (scribe)> 12
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[15:25:26] <Suzanne (scribe)> 16
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[15:27:30] <Suzanne (scribe)> 19
[15:31:01] <Suzanne (scribe)> 20
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[15:33:18] <Suzanne (scribe)> 21
[15:34:41] <Suzanne (scribe)> 23
[15:35:10] <Suzanne (scribe)> ("entanglements per second" will take some getting used to!"
[15:35:27] <Suzanne (scribe)> 24
[15:36:38] <Suzanne (scribe)> Kent Watson
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[15:39:09] <Suzanne (scribe)> Giovane Moura at the mic
[15:39:20] <Suzanne (scribe)> asking about practical details
[15:41:46] <Suzanne (scribe)> Hu at the mic, quesiton about QKD
[15:42:15] <Suzanne (scribe)> slide 26
[15:44:13] <Suzanne (scribe)> slide 29
[15:45:21] <Suzanne (scribe)> slide 31, with math for expressing quantum state
[15:47:05] <Suzanne (scribe)> slide 35, Tracy is speaking now
[15:47:57] <Suzanne (scribe)> slide 37 (we're recapping history now, more Einstein!)
[15:49:11] <Suzanne (scribe)> slide 38
[15:50:20] <Suzanne (scribe)> slide 39
[15:50:30] <Suzanne (scribe)> (science with a dash of philosophy)
[15:51:53] <Suzanne (scribe)> 41
[15:53:01] <Suzanne (scribe)> 42
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[15:56:11] <Suzanne (scribe)> 45
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[15:57:28] <Suzanne (scribe)> quantum state can be exchanged but there still needs to be a classical communication channel. (I think that's what Tracy just said)
[15:57:53] <Suzanne (scribe)> Dino Farinacci at the mic, asking about hybrid computation and predicting quantum state
[15:58:49] <Suzanne (scribe)> Tracy is revisiting that speed of light really is the limit, there's always a classical component
[15:59:04] <Suzanne (scribe)> But slide 46 is still called "Teleportation"
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[16:01:10] <Suzanne (scribe)> slide 50 and operations on one qubit
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[16:02:52] <Suzanne (scribe)> 51
[16:03:23] <Suzanne (scribe)> break 5 min
[16:03:27] <Suzanne (scribe)> brb
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[16:10:08] <Suzanne (scribe)> back, and question from Marie-Jose Montpetit
[16:10:14] <Suzanne (scribe)> (missed the substance, sorry)
[16:11:07] <John Woodworth> Missed the name of the book
[16:11:25] <Suzanne (scribe)> Robin Wilton at the mic, asking about equivalence (so far) between quantum computing and quantum entanglement
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[16:12:28] <Suzanne (scribe)> Mark Wilde, "Quantum Information Theory", for your beach reading pleasure
[16:12:32] <John Woodworth> thanks
[16:12:53] <Suzanne (scribe)> yw
[16:12:56] <Suzanne (scribe)> slide 52
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[16:13:39] <Suzanne (scribe)> slide 53, making your own bell pair for fun and profit
[16:17:27] <Suzanne (scribe)> slide 54
[16:21:38] <Suzanne (scribe)> 56
[16:22:30] <Suzanne (scribe)> this is getting into how you actually build hardware that makes qubits, which is pretty cool.
[16:25:24] <Suzanne (scribe)> slide 58
[16:29:05] <Suzanne (scribe)> (guessing the presentation will end somewhere around slide 98, the rest is appendices)
[16:30:19] <Steve Willis> Question: Why doesn't the detector measurement destroy quantum state rather than create entanglment
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[16:30:43] <Suzanne (scribe)> is that for the mic?
[16:31:30] <Suzanne (scribe)> (Any questions for the mic, please prepend "MIC:" — thanks!)
[16:32:26] <Suzanne (scribe)> I took it to the mic anyway, because I wanted to know too :)
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[16:33:00] <Steve Willis> thanks
[16:33:43] <Suzanne (scribe)> Dave Wheeler at the mic, question on current rate of entanglements generated
[16:34:05] <Suzanne (scribe)> it's "on the horizon" to get to 10K/sec
[16:35:47] <Suzanne (scribe)> slide 67, Rod goes to the mic, confirms they'll use ~95 slides
[16:36:18] <Suzanne (scribe)> now talking about how to actually make quantum repeater do useful things
[16:36:24] <Suzanne (scribe)> slide 69
[16:36:52] <Suzanne (scribe)> range is 10s of km, how do you build network components 100s or 1000s of km apart?
[16:39:27] <Suzanne (scribe)> slide 74
[16:43:58] <Suzanne (scribe)> slide 79
[16:45:21] <Suzanne (scribe)> slide 80: protocol stack
[16:45:39] <Suzanne (scribe)> slide 81: we're really only beginning to be able to build stuff that does these things
[16:48:13] <Suzanne (scribe)> Tracy on slide 82, on current experimental progress
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[16:50:46] <Suzanne (scribe)> slide 83
[16:52:59] <Suzanne (scribe)> slide 84
[16:54:20] <Suzanne (scribe)> Dino Farinacci at the mic
[16:54:45] <Suzanne (scribe)> Juan-Carlos Zuniga at the mic
[16:55:15] <Suzanne (scribe)> question: might there be a way to MITM this?
[16:55:46] <Suzanne (scribe)> answer: measurement-in-the-middle will contaminate state so badly purification will fail
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[16:57:17] <Suzanne (scribe)> Scott Fluhrer at the mic, how many purification steps — fixed or variable? based on what?
[16:58:20] <Suzanne (scribe)> Rod says good question and refers to a paper that advances a framework, but from earlier notions about architecture. But better states to start with reduce numbers needed.
[16:58:39] <Suzanne (scribe)> Q: how do you know how much fidelity you need to be "good enough"
[16:59:07] <Suzanne (scribe)> A: depends somewhat on application, is also an area of active research/publication
[16:59:16] <Suzanne (scribe)> (Tim Chown asked)
[17:02:26] <Suzanne (scribe)> Dino Farinacci at the mic: done any tests in geosync or leo? apparently the answer is yes
[17:02:39] <Suzanne (scribe)> and with some compelling results
[17:03:14] <Suzanne (scribe)> quick overview of the slides on current research, now wrapping up, slide 89
[17:07:13] <Suzanne (scribe)> any final questions??
[17:07:41] <Suzanne (scribe)> that's a wrap!
[17:07:47] <Cheng-Hsin Hsu> Thank you. :)
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[17:07:55] <Suzanne (scribe)> see you in the RG session tomorrow :)
[17:07:57] <John Woodworth> Thanks!
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