Jean-Yves Desaules

You can find the paper in Open Access on the APS website : journals.aps.org/prl/abstract/1…

Very happy to see Aron Kerschbaumer's first PhD work get published! What started as a short test project for him ended up as a nice PRL paper. You can read more about it in this summary by ISTA.

A Sky Full of (Quantum) Scars: A bizarre quantum phenomenon that goes against the universe’s drive for increased chaos might not be all too exotic after all. Read more: ista.ac.at/en/news/a-sky-… Now published in @PhysRevLett #QuantumScars #QuantumManyBodyScars #QuantumTheory

False vacuum decay is a fascinating effect that may impact the evolution of the Universe. Using @dwavequantum we studied its mechanism -- the dynamics of true vacuum bubbles in a toy model. Read more in @NaturePhysics rdcu.be/d8xLj Thanks to @JDesaules @LeverhulmeTrust

With Sophie, we took advantage of the nice weather this Saturday to climb the Glocknergrat in Mödling. It took us a bit of time, but the view at the top was worth it!

Our findings suggest that this non-thermal dynamics (called scarring) is much more common than previously thought, making it a powerful tool for handling quantum information. Read more at arxiv.org/abs/2410.18913. We thank @MSCActions and @ERC_Research for their support.

In our work, we show that r=1 is not the exception but rather the norm. For all r, we find 3 distinct families of non-thermalizing states with the same phenomenology. The key to unlocking them? A small amount of local entanglement to avoid frustration during the dynamics.

Do Rydberg atoms have good memory? In our preprint arxiv.org/abs/2410.18913 with A. Kerschbaumer, @Marko_Ljubotina and @MaksSerbyn at @ISTAustria, we show that these systems hold many new trajectories that evade thermalization, preventing the scrambling of quantum information. 🧵

Our paper on robust quantum scars at finite temperature is out in @PhysRevA Thanks to @JDesaules @JCHalimeh @LeverhulmeTrust and special thanks to Erik Gustafson for performing quantum simulations on @IBM quantum journals.aps.org/pra/abstract/1…

Very grateful to @ISTAustria for hosting me and to @MSCActions for funding my research!

Very happy to share our latest paper with my collaborators at @theoryleeds and at the @fzj_jsc. We used @dwavequantum hardware to perform a large-scale study of the role of bubbles and their interactions in false vacuum decay.

🚨New preprint📜 arxiv.org/abs/2404.11645. We show that deep in the confined phase of a Z2 lattice gauge theory, we can induce local deconfinement near a resonance between the fermionic mass and the electric-field strength. (1/4) @MCQST_cluster @LMU_Muenchen @FU_Berlin @ISTAustria

@JCHalimeh @Sona_najafi @LMU_Muenchen @IBM @ISTAustria Thanks a lot for the invitation! It's nice to finally meet in person after all these years of online meetings.

It’s great to have @Sona_najafi and @JDesaules visiting us here at @LMU_Muenchen for the week. Sona is an @IBM scientist with expertise in qudits, while Jean-Yves from @ISTAustria is an expert on quantum many-body scarring.

In non-Hermitian systems, the skin effect can localise a particle. In our new preprint arxiv.org/abs/2403.02395 we generalise this effect to the many-body Hilbert space and show that it can protect quantum scarring against disorder. Thanks to @JDesaules and @LeverhulmeTrust

We are happy to see our work on ergodicity breaking under confinement in cold-atom quantum simulators published in @quantumjournal. Check it out here: quantum-journal.org/papers/q-2024-… @LMU_Muenchen @MCQST_cluster @theoryleeds @JDesaules

The latest version of our work is now published in Science Advances doi.org/10.1126/sciadv…. Be sure to check it out, as it contains new experimental results where we control oscillations due to scarring using different disorder realisations.

In our upcoming @ScienceAdvances paper arxiv.org/abs/2312.10216 we used a superconducting quantum processor to realise a type of rainbow scar states whose entanglement can be tuned by disorder at infinite temperature. Thanks to @LeverhulmeTrust and @KITP_UCSB for support.

@QuSysTCD @theoryleeds Thanks!

@theoryleeds @JDesaules Congratulations @JDesaules

Congrats to Dr @JDesaules who has just passed his PhD viva with flying colours! Still needs improve a bit on the champagne skills though.