Category Archives: Quantum

A Masters project

In a previous post I reported on the beautiful recent result by Natarajan and Wright showing the astounding power of multi-prover interactive proofs with quantum provers sharing entanglement: in letters, . In this post I want to report on follow-up … Continue reading

Posted in meta, QPCP, Quantum, Science | Tagged , , , | 25 Comments

Randomness and interaction? Entanglement ups the game!

[05/25/19 Update: Kevin Hartnett has a nice article at Quanta explaining Natarajan & Wright’s result in slightly more layman terms than I’d be able to…see here: Computer Scientists Expand the Frontier of Verifiable Knowledge] The study of entanglement through the … Continue reading

Posted in CHSH, QPCP, Quantum, Uncategorized | Tagged | 8 Comments

UCSD Spring school on Quantum Computation

A couple months from now Dorit Aharonov, David Gosset and myself will be giving a short 3.5-day “Spring School” that is meant to be an introduction to recent topics in quantum computing, directed at young researchers in theoretical computer science at large. The school is … Continue reading

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Pauli braiding

[7/9/17 Update: Following a suggestion by Oded Regev I upgraded Section 1 from “probabilistic functions” to “matrix-valued functions”. This hopefully makes it a more useful, and interesting, mid-point between the classical analysis of BLR and the non-abelian extension discussed afterwards. … Continue reading

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Unitary Correlation Matrices

Today I’d like to sketch a question that’s been pushing me in a lot of different directions over the past few years — some sane, others less so; few fruitful, but all instructive. The question is motivated by the problem … Continue reading

Posted in Conferences, Quantum, Science, Uncategorized | Tagged , | 2 Comments

Quid qPCP?

This blog has already seen three posts on the quantum PCP conjecture: in February 2013 to highlight several talks at the Simons Institute in Berkeley, in October 2013 to promote a survey on the topic I wrote with Dorit Aharonov … Continue reading

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Coming to a theater near you

This Fall together with long-time friend and collaborator Stephanie Wehner I will be teaching a Caltech/TUDelft/EdX course on Quantum Cryptography. As I am writing this I almost feel like saying I have taught an EdX course…indeed, I just finished recording … Continue reading

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