I would like to see a clearer high-level justification for quantum communications and QKD, why is it not easier to just transfer to post-quantum crypto? (Like what google seem to be doing)
Álvaro M. Alhambra
@alvalhambra.bsky.social
Quantum physicist. Will apply Cauchy-Schwarz for food.
Ecstatic that our results on efficiency of Gibbs samplers and universal quantum computation have been published in Nature Physics 🥳 www.nature.com/articles/s41...
Efficient thermalization and universal quantum computing with quantum Gibbs samplers - Nature Physics
Quantum simulation of equilibrium many-body systems requires the ability to sample from the thermal distribution of quantum states. An algorithm has now been proven to be an appropriate quantum analog...
nature.com
⚛️La revolución que traerá los procesadores cuánticos atómicos 👩💻El #CSIC desarrolla nuevos prototipos para la simulación y la #ComputaciónCuántica manipulando átomos individualmente 🗣️Podría ser una realidad en 5 o 10 años #Reportaje👉 http://tiny.cc/rhx0101
So many strong QEC arXiv submissions today that I could guess there was a conference's deadline (turns out its this of course qec-conference.org/2026/ )
Home
June 7th-12th, 2026 Santa Barbara, California Call For Papers Registration What is QEC 2026? QEC 2026 is the 8th edition of the International Quantum Error Correction conference. See the list of previ...
qec-conference.org
www.quantamagazine.org/when-chatgpt... There was this term, “API science,’’ that people would use to be like: “We’re doing science on a product? This isn’t science, it’s not reproducible.”
When ChatGPT Broke an Entire Field: An Oral History | Quanta Magazine
Researchers in “natural language processing” tried to tame human language. Then came the transformer.
quantamagazine.org
Open positions for tenured scientist (Científico titular) www.boe.es/diario_boe/t... and senior scientist (Investigador científico) www.boe.es/diario_boe/t... They both include positions in quantum tech 1/
BOE-A-2025-27154 Resolución de 23 de diciembre de 2025, de la Subsecretaría, por la que se convoca proceso selectivo para ingreso, por el sistema general de acceso libre y promoción interna, en la Esc...
boe.es
PSA: There are going to be many open positions in quantum technologies in CSIC in the coming years. Permanent positions. If you are interested, please review earlier calls to understand the requirements 1/
Wondering if I should learn what all this "quantum chemistry" is about
Few texts have had a bigger positive impact in my scientific thinking than the first couple of pages of this arxiv.org/abs/0804.0327
The large deviation approach to statistical mechanics
The theory of large deviations is concerned with the exponential decay of probabilities of large fluctuations in random systems. These probabilities are important in many fields of study, including st...
arxiv.org
I'm curious to know if people have encountered papermills in physics, it seems to be a huge problem (great blog btw) forbetterscience.com/2025/11/17/t...
The Fribourg Declaration
“The papermill crisis is not an external attack on science but a mirror held up to its dysfunctional ecosystem. The for-profit publishing industry, posing as a newly found saviour of research…
forbetterscience.com
Fun fact: yesterday I gave an outreach talk and when presenting Shor's algorithm I had 24=6×2×2 as an example of prime factoring
This is a fantastic essay and I wonder how much if it directly translates into science (e.g. paper writing as opposed to paper reading these days) danioffline.substack.com/p/everyone-w...
everyone wants to be a DJ, no one wants to dance
This is not an essay about nightlife, not exclusively.
danioffline.substack.com
A non-physicist friend of mine just today made 10k selling IonQ shares, great times for QC!
Shamelessly stealing this image for every single time I have to explain the Fourier transform in the future
Quanta Magazine@quantamagazine.org · 11mo agoAt 26, during the Reign of Terror in France, Jean-Baptiste Joseph Fourier narrowly avoided the guillotine. A decade later, he made a discovery that changed mathematics forever. @shalmawegs.bsky.social reports: www.quantamagazine.org/what-is-the-...
Trying to fit this in my next grant application
Completely abhorred by the correct spelling being "simulatability" and not "simulability".
The most interesting idea I've learnt this week: arxiv.org/abs/2311.10304 In a dissipative setting, if one takes the thermodynamic limit first and then the limit of zero dissipation, you are left with a Liouvillian gap related to the relaxation of the closed system dynamics
Liouvillian-gap analysis of open quantum many-body systems in the weak dissipation limit
Recent experiments have reported that novel physics emerge in open quantum many-body sys- tems due to an interplay of interactions and dissipation, which stimulate theoretical studies of the many-body...
arxiv.org
One more day, one more chance to pretend that I understand the word "topological"
I am very happy to announce that my first published article „Rapid Thermalization of Dissipative Many-Body Dynamics of Commuting Hamiltonians“ is now published in Communications in Mathematical Physics. rdcu.be/euy1Y I feel honored and humbled to have been accepted in such a prestigious journal.
Rapid Thermalization of Dissipative Many-Body Dynamics of Commuting Hamiltonians - Communications in Mathematical Physics
Quantum systems typically reach thermal equilibrium rather quickly when coupled to a thermal environment. The usual way of bounding the speed of this process is by estimating the spectral gap of the d...
link.springer.com
I have many opinions on scientific writing and one of them is that we should typically aim to do better than "closing a gap" in the literature
A bit overwhelmed by how hard it is to keep track of results I want to learn about
In a new work, we show both numerically and analytically how expectations values of long-range models are robust to imperfections in the underlying Hamiltonian arxiv.org/abs/2506.16451
Stability of thermal equilibrium in long-range quantum systems
Experimental realizations of spin models are irremediably prone to errors, which can propagate through the system corrupting experimental signals. We study how such errors affect the measurement of lo...
arxiv.org
Is it normal in some areas to cite papers in talks as [senior author] et al.? I saw it done recently and it seems kinda bad
Personalized Emails and URLs
Personalized Emails and URLs
normal.in
Counting the days down to the point at which we'll have more whitepapers and roadmaps than actual papers
New paper today! Very excited to announce we obtain, from first principles, a quantum master equation that both applies in the many-body regime and provably converges to the exact Gibbs state: arxiv.org/abs/2505.20064
Thermalization in open many-body systems and KMS detailed balance
Starting from a microscopic description of weak system-bath interactions, we derive from first principles a quantum master equation that does not rely on the well-known rotating wave approximation. Th...
arxiv.org
The single biggest threat to my and many other's scientific work is Madrid's government attack on public education, today we march against it!
My favourite trait of scientific writing is the shameless overuse of the word "framework"
When public documents appear on national quantum tech etc usually drafted by public servants with a mixed background....who are they asking for advice?