Thibaut Lacroix

📢 Good news: We’ve extended the deadline for FQxI’s How Quantum is Life? essay competition.

You now have until October 29, 2025 to submit your entry.
Remember, there's a $53,000 prize pot up for grabs!

All information here qspace.fqxi.org/competitions...

Le bonheur à portée de main et je m'en aperçois seulement aujourd'hui !

327 pdf de livres des éditions Mir en français accessibles sur archive.org/details/mir-...

Avec bien sûr tous les Landau !

Auditeur de longue date de l'excellente émission @sciencecqfd.bsky.social, je suis très heureux d'avoir pu participer celle d'aujourd'hui sur la biologie quantique 📻⚛️🍃

#Podcast Biologie quantique : la nouvelle mécanique du vivant tinyurl.com/2yqykozd à (ré)écouter via @franceculture.fr ! #ScienceCQFD

"Le processus de photosynthèse est trop efficace pour être dû uniquement à la physique classique. Sont efficacité est presque de 100 %. " - Thibaut Lacroix

"Quand on parle de biologique quantique, on s'intéresse à tous les effets de l'infiniment petit [...] mais à des échelles qui sont celles de la biologie et qui peuvent avoir des conséquences sur les fonctions des êtres vivants." - Thibaut Lacroix

[RDV 16h !] Accrochez vos ceintures, aujourd'hui on va parler de biologie quantique : comment des phénomènes quantiques peuvent-ils avoir des effets sur le comportement de dans certains organismes ? tinyurl.com/2yqykozd 🔬🌿🕊️
Avec @thibautlacroix.bsky.social, Alex Chin et Margaret Ahmad #ScienceCQFD

@cnrsecologie.bsky.social regrette profondément l'adoption de cette loi à la vision court-termiste & ses conséquences graves sur l’environnement, qui méprise santé & bien-être de la population & le rôle des espèces sauvages dans la prod. agricole. La communauté scientifique n'a pas été entendue.

Really happy to share our last paper in @commsphys.nature.com where we give a new derivation of Markovian and non-Markovian collision models using techniques of chain mapping that enabled us to characterise all their sources of error when used as a numerical method!

Full Microscopic Simulations Uncover Persistent Quantum Effects in Primary Photosynthesis The presence of quantum effects in photosynthetic excitation energy transfer has been intensely debated over the past decade. Nonlinear spectroscopy cannot unambiguously distinguish coherent electroni...

New preprint is out on ArXiv ✨
In this work, we boost our numerically exact method and simulated electronic dynamics of pigment-protein complexes based on full microscopic models, showing picosecond-lived inter-excitonic coherences 🌱
#QuantumBiology #Photosynthesis

👉 arxiv.org/abs/2503.17282

Operator-basis Matrix Product State formalism for optical circuits
https://arxiv.org/pdf/2502.01737
Dario Cilluffo, Matthias Kost, Nicola Lorenzoni, Martin B. Plenio

‪
Check out this #Julia package MPSDynamics.jl to simulate open quantum systems with tensor networks

#TensorNetworks #QuantumSoftware

Feedbacks and contributions are most welcomed!

Don't hesitate to contact us if you
- found a bug,
- have a suggestion on how to improve the code and/or documentation,
- would like to get involved in writing code and/or documentation.

Feel free to open an issue on Github :)

MPSDynamics.jl: Tensor network simulations for finite-temperature (non-Markovian) open quantum system dynamics The MPSDynamics.jl package provides an easy-to-use interface for performing open quantum systems simulations at zero and finite temperatures. The package has be

Or, to have a quick overview, you can read our software paper
doi.org/10.1063/5.02...

Among other things, it can also be used with time-dependent Hamiltonians or to access environmental observables directly 🔎

To learn more about it, you can have a look at the documentation and the tutorials
shareloqs.github.io/MPSDynamics....

GitHub - shareloqs/MPSDynamics.jl: Tensor network simulations for finite temperature, open quantum system dynamics Tensor network simulations for finite temperature, open quantum system dynamics - shareloqs/MPSDynamics.jl

Want to simulate open quantum systems but don't know how?

Check out our #Julia package MPSDynamics.jl to simulate exactly finite temperature non-Markovian dynamics with bosonic, fermionic, and qubits environments (even several environments!) with tensor networks 🔵-🟣-🔴-🟠
github.com/shareloqs/MP...

Unlocking Heisenberg Sensitivity with Sequential Weak Measurement Preparation T. B. Lantaño, Dayou Yang, K. M. R. Audenaert, S. F. Huelga, and M. B. Plenio, Quantum 9, 1590 (2025). We propose a state preparation protocol based on sequential measurements of a central spin couple...

Trini's first paper is out in print in Quantum no less quantum-journal.org/papers/q-202.... Learn how to achieve Heisenberg scaling sensitivity in a central spin model without state preparation - just measure the central spin repeatedly. #quantum #metrology

#HelloHE&R 👋

I'm a theoretical physicist working on open quantum systems ⚛️

I'm interested in quantum biology, numerically exact methods to simulate complex quantum system and the surprising effects emerging from system-environment interactions 💥

✨ Hello, Bluesky! ✨
We’re thrilled to join this amazing platform and connect with the scientific community in new and exciting ways. Follow us here at @qubitulm for cutting-edge physics research, inspiring collaborations, and all the latest from our institute! #Quantum