ASPECTS

Huge congratulations to the winners of the ‪@horizonquantum.bsky.social‬ poster prize!
🏆 First place: Magdalini Zonnios
🏆Second place: Peter O’Donovan
Check out their abstracts here 👉 www.aspects-quantum.com/flqt2025

ASPECTS Principal Investigator, Natalia Ares, kicks off our 4th day of FLQT, introducing invited speaker Nikolai Kiesel. Find out more: www.aspects-quantum.com/flqt2025

🔍 How uncertain can quantum systems be?
Saulo Moreira shares work developing new bounds that show how quantum effects—like coherence and correlations—can break classical limits on uncertainty.
This helps us better understand how quantum systems behave when measured.

Emanuel Schwarzhans discusses how entropy production powers detection—and limits it. Efficiency, jitter, dead time, dark counts: all tied to thermodynamic cost.

What defines a clock in quantum mechanics?
Paul Erker explores the minimal ingredients for timekeeping in the quantum regime, introducing autonomous quantum clocks and the thermodynamic trade-offs that constrain their precision.
A deep dive into time, entropy, and the limits of quantum tech.

ASPECTS' Javier Prior presents his team's work looking at how strong coupling reshapes heat flow in open quantum systems—exploring non-Markovian effects, coherence-driven fluctuations & new equilibrium states.

🕰️ What’s the real cost of reading time?
ASPECTS experiment reveals that the measurement of quantum ticks—not their generation—is the dominant source of entropy in quantum timekeeping.
Far from wasteful, this quantum-to-classical transition boosts precision. #FLQT2025

Simon Sundelin kicks off our ASPECTS day at the FLQT conference. Learn more here: www.aspects-quantum.com/flqt2025

FLQT 2025 — ASPECTS Fundamental Limits of Quantum Technologies conference, Dublin, 25-29 August 2025

I'll be giving a talk at FLQT next week! www.aspects-quantum.com/flqt2025

Anyone else going?

Dr Shane Dooley standing on the stage, next to the first slide of his talk titled “Remote quantum sensing through a thermal Floquet spin chain”

So many great talks at Fundamental Limits of Quantum Technologies already, and many more yet to come! Here’s Shane Dooley of DIAS telling us about metrology using many-body quantum systems 🤩

www.aspects-quantum.com/flqt2025
@aspects-quantum.bsky.social

Illustration of the three-way trade off between dark count rate (top), detection time uncertainty (jitter, bottom left) and dead time (bottom right). These cannot all be simultaneously improved, but must be traded off against one another, if the detector’s rate of steady-state entropy production (centre) is fixed.

Fresh on arXiv! arxiv.org/abs/2508.16375 By casting detectors as autonomous thermal machines, we uncover the link between entropy production and the detector’s efficiency, timing jitter, dead time and dark counts. Outstanding work by Manu Schwarzhans with my @aspects-quantum.bsky.social friends ❤️

Last chance to avail of the early bird registration discount for FLQT 2025, which ends this week!!

Copyright by Alexander Rommel / TU Wien.

What started as informal discussions on the Danube beach in Vienna during QTD2023 has been published at last. Trying to come up with an experimentally feasible quantum clock we came across a rich model – the ring clock – that overturned a common wisdom in the community. doi.org/10.1038/s415...

FLQT 2025 — ASPECTS Fundamental Limits of Quantum Technologies conference, Dublin, 25-29 August 2025

Don't forget to submit your abstract for our conference in Dublin, August 2025! www.aspects-quantum.com/flqt2025

Had lots of fun with @khalak.bsky.social, recording the Gujarati, Hindi and Portuguese versions of "Quantum Quest - Hide and Seek", the upcoming animation currently being developed by Cassete Vision's amazingly talented team 👀🐈‍⬛ @aspects-quantum.bsky.social
📷: Adam Rael

We’re organising a conference in Dublin! Fundamental Limits of Quantum Technologies 2025 — everything from error mitigation on NISQ devices, through control constraints on complex quantum systems, to quantum thermodynamics and energetics, and much more! Abstract submission and registration open! 👇

Pauli Erker giving a wonderful invited talk on the autonomous quantum processing unit arxiv.org/abs/2402.00111, part of an inspiring session on Time in Quantum Mechanics and Thermodynamics at #APSSummit2025

Simon Sundelin speaking at a podium at APS

One of Simon’s slides explaining the experimental setup

At #APS watching Simon Sundelin nailing his talk on our @aspects-quantum.bsky.social collaboration 😍

Come and say hi! #apsmarch #marchmeeting

Time in Quantum Mechanics and Thermodynamics 11:30 am – 2:30 pm, Thursday March 20, Session MAR-S56, Anaheim Hilton, California C (Ballroom Level)

- Pauli Erker speaks directly after on autonomous quantum computation on Wednesday at 1:18pm summit.aps.org/events/MAR-S...

Time in Quantum Mechanics and Thermodynamics 11:30 am – 2:30 pm, Thursday March 20, Session MAR-S56, Anaheim Hilton, California C (Ballroom Level)

- Mark Mitchison @mitchison.bsky.social talks about fundamental limits for timekeeping on Wednesday at 12:42pm summit.aps.org/events/MAR-S...

Quantum Information: Thermodynamics out of Equilibrium 11:30 am – 2:30 pm, Wednesday March 19, Session MAR-M69, Anaheim Hilton, San Simeon AB (Level 4)

- Simon Sundelin describes exquisite measurements of heat fluctuations on Wednesday at 1:06pm summit.aps.org/events/MAR-M...

Machine Learning and Closed-Loop Quantum Control 3:00 pm – 5:48 pm, Tuesday March 18, Session MAR-J36, Anaheim Convention Center, 258A (Level 2)

- Pranav Vaidhyanathan speaks about using a transformer to learn optimal feedback control on Tuesday at 4:48pm summit.aps.org/events/MAR-J...

Superconducting GKP-style Encoded Qubits 3:00 pm – 5:36 pm, Tuesday March 18, Session MAR-J17, Anaheim Convention Center, 161 (Level 1)

- Simone Gasparinetti talks about quantum speedup for boson sampling using superconducting circuits on Tuesday at 3:36pm summit.aps.org/events/MAR-J...

ASPECTS goes to March Meeting, aka APS Global Physics Summit! Catch five of our researchers at the following sessions:

✨
✅ First experiment linking entropy production in a microscopic clock to macroscopic measurement.
✅ Precision improves as the measurement process dominates energy costs.
✅ The thermodynamic cost of recording time may be more fundamental than the clock itself.

MetaSym: A Symplectic Meta-learning Framework for Physical Intelligence Scalable and generalizable physics-aware deep learning has long been considered a significant challenge with various applications across diverse domains ranging from robotics to molecular dynamics. Ce...

Introducing our quantum clock using charge tunneling in a double quantum dot (DQD), where each tunneling event acts as a "tick."

Read more: arxiv.org/abs/2502.16667

MetaSym: A Symplectic Meta-learning Framework for Physical Intelligence Scalable and generalizable physics-aware deep learning has long been considered a significant challenge with various applications across diverse domains ranging from robotics to molecular dynamics. Ce...

An interesting new article, introducing MetaSym, a deep learning model that learns physics better by preserving key properties like energy & momentum. Read more here: arxiv.org/abs/2502.16667

ASPECTS

The ASPECTS consortium is funded by the Quantum Flagship @ec.europa.eu – you can check out all of our activities here! www.aspects-quantum.com
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