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Frédéric Grosshans @fgrosshans
, 4 tweets, 2 min read Read on Twitter
Now Erika Kawakami on Capacitive read-out of the Rydberg states towards the realization of a quantum computer
using electrons on helium
#LTQI #JapanEUWorkshop
Erika Kawakami: Why use electrons on helium? The system is clean: electrons float in vacuum, far prom nuclear spin and other charges. Electron qubits are 1µm away, which will be useful for surface codes #LTQI #JapanEUWorkshop
Erika Kawakami: The spin-state is used a qubit state, the rydberg states are auxiliary states. T₂=100 s for spin states. 1 qubit gates through ESR; 2-qubit gate using Coulomb interacton #LTQI #JapanEUWorkshop
Erika Kawakami’s 2-qubit phase-gate (hoped ?) fidelity ∼99.9%
#LTQI #JapanEUWorkshop
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#LTQI #JapanEUWorkshop

More from @fgrosshans see all

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Now at #JapanEUWorkshop, Shuntaro Takeda on A strategy for large-scale optical quantum computing #LTQI
Shuntaro Takeda: use a deterministic approach, a loop to increase scalability. Determinism is brought by continuous variable (CV) system, which need 5 gates to be universal: 3 linear, squeezing and cubic gate (the hard one) #LTQI #JapanEUWorkshop
Shuntaro Takeda: both discrete CNOT and CV cubit gates need χ⁽³⁾ and are therefore difficult, but the latter is at least deterministic.
#LTQI #JapanEUWorkshop
Read 7 tweets
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Now at #JapanEUWorkshop , Anthony Laing on Photonic simulations of molecular quantum dynamics #LTQI
Anthony Laing essentially looks a photnic simulation of vibrational modes of molecules
Anthony Lang looks at selective dissociation with a single quantum of vibration NH₃→NH₂+H. These molecular transition can be manipulated through control of the wavepacket. #LTQI
Read 6 tweets
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Now, Eleni Diamanti on Practical Secure Quantum Communications #JapanEUWorkshop #LTQI
Eleni Diamanti: The current solution to secure network links: Symmetric + Asymmetric cryptography. Recent development to fight the threat of quantum computers: postquantum cryptography. Quantum cryptography offers the advantage to be future proof #LTQI
Eleni Diamanti: REal security will have to combine the the use of classical and quantum cryptography. nature.com/articles/nphys…
#LTQI #JapanEUWorkshop
Read 12 tweets

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ALERT!
Supplementary List of Business in Lok Sabha is out.

Two bills listed for introduction, including the Constitutional Amendment Bill for 10% Quota. What's more, it is also listed for consideration and passing TODAY!
#SansadWatch
They seem to be in the mood to bulldoze this bill through. It's a super important Constitutional Amendment, mind you.

No time will be given to MPs for filing amendments. The Bill was circulated TODAY! Parliamentary practice is being thrown out the window.
#SansadWatch
In his interview to @smitaprakash, PM Modi had said that there should be deep discussions in Parliament on every aspect. But when his Government introduces and pushes through bills at such short notice, what they heck is he even talking about?

Whattay farce.
#SansadWatch
Read 30 tweets
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Mueller & Congressional investigators have looked into a meeting in the Seychelles between allies of Trump and Putin. Now we have the Russian read-out of what was said.

What Erik Prince and Moscow’s Money Man Discussed in That Infamous Seychelles Meeting thedailybeast.com/revealed-what-…
“The idea, according to the memo, was to set up a ‘joint special forces mission where together the U.S. and Russia take out a key ISIS person or place, then announces it after.’”
"The memo was also sent to Richard Gerson, head of Falcon Edge Capital. A representative for Gerson said he was in the Seychelles the week of the Prince-Dmitriev meeting but left the island before it took place. The representative declined to comment on the memo."
Read 6 tweets
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💥What Erik Prince and Moscow’s Money Man Kirill Dmitriev Discussed in That Infamous Seychelles Meeting - Now we have the Russian read-out of what was said. by @woodruffbets @ErinBanco thebea.st/2N6oVi9
"The memo was also sent to Richard Gerson, head of Falcon Edge Capital, a hedge fund in New York City. A representative for Gerson said he was in the Seychelles the week of the Prince-Dmitriev meeting but left the island before it took place"
thedailybeast.com/revealed-what-…
Richard Gerson is reportedly under scrutiny by Mueller. Gerson has ties to the Kushner family and Gerson who has done business with the UAE attended an early 2017 meeting in NYC with George Nader, Kushner, and Bannon
nytimes.com/2018/04/04/us/…
Read 3 tweets
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Thread 1/7 WHY WE NEED #AUDITS. Professor Andrew Appel breaks down the #myth that someone can't #hack a #VotingMachine if it's not connected to the #Internet. freedom-to-tinker.com/2018/02/22/are… #PaperBallots #AuditTheVote
Thread 2/7 "The ES&S model #DS200 #optical-scan voting machine has a #cellphone modem that it uses to upload #election-night results from the #voting machine to the “county central” canvassing #computer." #PaperBallots #AuditTheVote
Thread 3/7 "The voting machine calls the county-central computer using its cell-phone modem... this connects ... to a cell tower ... near the canvassing computer." #PaperBallots #AuditTheVote
Read 7 tweets
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Now that the clock is ticking down on the account I should probably tell you all about the most exciting thing that ever happened to me.
It was back when I lived by the Coast. And as you remember, we had problems with smugglers using the caves back then.
That had been going on for a long time, it was just one of the things that happened down by the Coast. But suddenly things were different.
Read 48 tweets
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Day 2 of quantum advantage workshop at @InHenriPoincare, featuring Ashley Montanaro (@quantumashley), Juan Bermejo-Vega (myself) and Dominik Hangleiter. #LTQI
We kick off with Ashley Montanaro @quantumashley, giving a tutorial about IQP circuits (IQP = Instantaneous Quantum Polynomial time) and potential for demonstrating superior quantum computational performance. #LQTI
Refs:
- Shepherd, Bremner 0809.0847;
- Bremner, Jozsa, Shepherd 1005.1407;
- Bremner, Montanaro, Shepherd 1504:0799;
- Bremner, Montanaro, Shepherd 1610:01808;
Read 24 tweets

Trending hashtags

#REMARKABLE #opendata #LOL #MeepMeep #thestormis #DWave #optical #resistance #APCPDP #bigdara #READ #handmarked #bigdats #TIL #cellphone #LQTI #smarticites #election #Transhumanism #NOW #smartcitirs #smatcities #Fight4Naija #AUDITS #Nicholson1968

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