James D. Watson

"Greek God of ruining provable statements" - @QueenofQuanta. Currently at @GoogleQuantumAI. Previously at @JointQuICS, @UCL, @Cambridge_Uni

[James D. Watson @JamesDCWatson]

Really happy with this work with Jacob: we exponentially improve circuit depths for Trotterization with some minimal measurement overhead + classical postprocessing!

[PRX Quantum @PRX_Quantum]

Evidence of improved run times in quantum simulation using extrapolation techniques yields insights into the utility of Trotter error mitigation. @JamesDCWatson

https://t.co/gVSpsISdwL

[James D. Watson @JamesDCWatson]

@SinghJyotirmai We love to see it

[Daniel Grier @danielgrier_]

Hello, #quantum! I'm recruiting new PhD students this year to work with me in quantum complexity theory. I encourage you to apply. Come be part of the strong theory group here @ucsd_cse!

Application deadline is Dec 18th -- details: https://t.co/QtJPlZFLvJ

[James D. Watson @JamesDCWatson]

@econcallum @StefanFSchubert I'm surprised -- why are people thinking of moving from the US?

I'm also writing from the US! In tech adjacent fields UK salaries are *significantly* below their US counter-partners, usually by a factor of 2x, and most my colleagues are horrified by UK salaries.

[James D. Watson @JamesDCWatson]

@StefanFSchubert I don't disagree!

But I also think the UK is uniquely vulnerable in this sense! The UK is *so* culturally/linguistically aligned with the US that moving to the US isn't culturally very hard. Couple this with a 2x real salary increase, and suddenly moving to the US is attractive

[James D. Watson @JamesDCWatson]

@StefanFSchubert I'd say about 40% for Cambridge and about 60-70% for UCL. Most leavers went to the US.

Of the people who stayed from Cambridge, both work for hedgefunds, and those who left for the US work in a mix of finance/tech. The UCL graduates are mostly working in tech/academia.

[James D. Watson @JamesDCWatson]

@JiaqingJ This is a fantastic result! Congrats!

[James D. Watson @JamesDCWatson]

@dsfranca Awsome! Congrats Daniel -- very well deserved!

[James D. Watson @JamesDCWatson]

@Gemma_DLC Congrats Gemma!

[Andrew Childs @andrewmchilds]

I'm honored to receive the 2024 Kirwan Prize from @UofMaryland for research on quantum simulation algorithms. Many thanks to my collaborators on this topic over the years, especially @yuansu_umd who made deep contributions to the analysis of product formulas.

[James D. Watson @JamesDCWatson]

As a bonus, we also put limits on where the efficient classical Gibbs sampling algorithms (such as those recently developed by @AineshBakshi , Liu, Moitra, @ewintang ) can work.

[James D. Watson @JamesDCWatson]

New paper: we show quantum advantage in Gibbs sampling with local Hamiltonians at constant temperature!

This tackles one of my favourite questions: how "quantum" are systems at non-zero temperature?

Work with the fantastic @joelrajakumar!

Link: https://t.co/wrNJX4l19d

[James D. Watson @JamesDCWatson]

Finally, to show quantum advantage, we borrow results from the Bergamaschi et al paper to show that these families of Gibbs states can be prepared efficiently with a quantum computer using the recent Lindbladian methods.

[James D. Watson @JamesDCWatson]

@JinPengLiu__Sky @UofMaryland @UCBerkeley @MIT @Tsinghua_Uni Congrats Jin-Peng!