ieva

Actually insanely proud that 6 months of drumming in I can do this at .9 the speed after only a few hours of practice 😅

Universal Counterdiabatic Driving Local counterdiabatic (CD) driving provides a systematic way of constructing a control protocol to approximately suppress the excitations resulting from changing some parameter(s) of a quantum system ...

What a day for counterdiabatic driving research!

2 new massive papers on the arXiv:

* "Universal Counterdiabatic Driving" from Morawetz & Polkovnikov arxiv.org/abs/2503.01952

* "Counterdiabatic Driving with Performance Guarantees" from Finžgar et al arxiv.org/abs/2503.01958

Here's the abstract

Speeding Up Quantum Measurement Using Space-Time Trade-Off A new scheme can speed up quantum measurement in different physical platforms through a space-time trade-off --- using additional ancillary qubits in place of longer measurement time.

Our paper "Speeding Up Quantum Measurement Using Space-Time Trade-Off" was finally published recently in PRL and has received Editors' Suggestion! :))

Thank you to Chris Corlett, Andrew Daley, Cica Gustiani, Gerard Pelegrí and Jonathan Pritchard for all the work!

journals.aps.org/prl/abstract...

DOGE is like if Fyre Festival was a government agency.

At QIP in case anyone is around and wants to say hi :))

This is brought to you by a re-read of Seven Sketches coupled with far too much time spent playing Baba is You recently

Someone should absolutely gamify the exercises in this book, I can already see the puzzles in my head

I’ve lost the will to be publicly excited about science or engaging with joy and honesty the way I normally do. I’ve sort of lost faith in humanity as a whole. Need to figure out what to do to make it better first.

WW2 was always taught as this madness that took over Europe, where people did despicable, inhumane things as if lost in a trance. Always seemed weird to me. But I kinda see how it happened now.

Evil people will always exist. Fear and ignorance will always exist. Hell, death and war have always been around, only shifting their battlegrounds. It’s the rolling over and taking it that I find terrifying.

It’s really not the fact that it’s happening as much as it is the fact that there is so little appropriate reaction

Aaand this is now published! :) The code repo is available for anyone who want to play around with computing non-adiabatic effects for their Hamiltonian.

Paper: scipost.org/SciPostPhys....
Code repo: github.com/ewenlawrence...

I plan to write a quick blogpost on the results, so keep an eye out!

Coming back from Eastern Europe in the winter and realising that Londoners are actually such a friendly approachable bunch 😅

A Simple and Combinatorial Approach to Proving Chernoff Bounds and Their Generalizations The Chernoff bound is one of the most widely used tools in theoretical computer science. It's rare to find a randomized algorithm that doesn't employ a Chernoff bound in its analysis. The standard pro...

I love this paper by Bill Kuszmaul.
His proof of Chernoff bound is much more illuminating than the standard algebraic proof I learned.

Ieva C. on LinkedIn: Quantum Algorithms Intern - Phasecraft Internships are open at Phasecraft! Closing date is 9th of March 2025, so if you're an early-career researcher in quantum information or in an adjacent field…

Phasecraft internship applications are open! Anyone working on quantum info at an early stage (or adjacent fields!) who wants to experience working with a fantastic research team on cutting-edge quantum algorithms is welcome to get in touch :)

🖊️ @qzoeholmes.bsky.social and I are editing an issue for Quantum Science and Technology journal ow.ly/fR1W50Uu1av
We want
- (Wacky) new ideas for variational algorithms
- Honest benchmarks, if you show it don't work, we want it (be thorough)
- Studies on classical simulability
- Power of data in QML

Thank you to everyone and I'll post the links for the papers once they're published! :))

The second is "Speeding up quantum measurement using space-time trade-off", a project I spent a lot of time on & thought would never go anywhere, if it weren't for Chris Corlett and all the wonderful folks at Bristol/Strathclyde who put it together!

journals.aps.org/prl/accepted...

The first is "A numerical approach for calculating exact non-adiabatic terms in quantum dynamics", put together with a lot of talent and effort by Ewen Lawrence, a PhD from Strathclyde :)

scipost.org/submissions/...

Dropping in with some good news that two of the last papers from my PhD have recently been accepted to their respective journals, SciPost and PhysRevLett :)))

Many thanks to the hard work of all my collaborators!

1/3

Today I was asked in an interview about folks who use the weirdness of ✨quantum✨ to hawk pseudoscience junk. I think that kind of grift proliferates because of a big misunderstanding a lot of folks have about quantum mechanics, which is not really their fault!
🧵

This is the most 1930s story I've ever encountered tbh

Was I the only one to not know that Ettore Majorana, of equation and fermion fame, disappeared without a trace in his 30s likely to live out the rest of his days in anonymity in Venezuela?

roma.corriere.it/notizie/cron...

Thanks! What's the hot topic exactly, is it the QND not being perfect in practice or the fact that dispersive readout is not exactly QND?

Thanks! :)

What a fascinating read. TIL that the information rate for humans tasks in almost always at most 10bit/s
(but that our senses gather that at 10^8 times that speed!)
arxiv.org/abs/2408.10234

Hi #quantum folks, does anyone have any favorite examples of non-demolition measurements and links to papers where these have been implemented in practice?

Although I still can’t get over this

Fantastic book! I still have the exercises tucked away somewhere from Chris’ first run of the course in Edinburgh :)