Jean-Yves Desaules

Postdoc in the group of Maksym Serbyn at ISTA. IST-BRIDGE fellow. Studying non-equilibrium quantum physics and ergodicity breaking.
📸© MK/ISTA

[Jean-Yves Desaules @JDesaules]

You can find the paper in Open Access on the APS website : https://t.co/HgxrOzVWx2

[Jean-Yves Desaules @JDesaules]

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.

[ISTAustria @ISTAustria]

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: https://t.co/paroIrdRmK

Now published in @PhysRevLett

#QuantumScars #QuantumManyBodyScars #QuantumTheory

[ISTAustria @ISTAustria]

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: https://t.co/paroIrdRmK

Now published in @PhysRevLett

#QuantumScars #QuantumManyBodyScars #QuantumTheory

[Quantum Many-Body Physics @ Leeds @theoryleeds]

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 https://t.co/rlv6AfXiKI Thanks to @JDesaules @LeverhulmeTrust

[Jean-Yves Desaules @JDesaules]

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!

[Jean-Yves Desaules @JDesaules]

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 https://t.co/aO1HjFQ7R9.

We thank @MSCActions and @ERC_Research for their support.

[Jean-Yves Desaules @JDesaules]

Do Rydberg atoms have good memory?

In our preprint https://t.co/aO1HjFQ7R9 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. 🧵

[Jean-Yves Desaules @JDesaules]

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.

[Quantum Many-Body Physics @ Leeds @theoryleeds]

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 https://t.co/DzsZHIrWe3

[Jean-Yves Desaules @JDesaules]

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

[Jean-Yves Desaules @JDesaules]

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.

[Quantum Many-Body Physics @ Leeds @theoryleeds]

Our Universe may be trapped in a metastable false vacuum state. But how do bubbles of true vacuum emerge, move and interact with each other? We explored this on a @dwavequantum machine: https://t.co/OLMOO1kluQ Thanks to @LeverhulmeTrust @JDesaules and colleagues at JSC

[Jad C. Halimeh @JCHalimeh]

🚨New preprint📜 https://t.co/LVBrNGwkBf. 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

[Jean-Yves Desaules @JDesaules]

@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.

[Quantum Many-Body Physics @ Leeds @theoryleeds]

In non-Hermitian systems, the skin effect can localise a particle. In our new preprint https://t.co/D42Ri2sRx0 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

[Jad C. Halimeh @JCHalimeh]

We are happy to see our work on ergodicity breaking under confinement in cold-atom quantum simulators published in @quantumjournal. Check it out here: https://t.co/SbVH5jjzwx
@LMU_Muenchen
@MCQST_cluster
@theoryleeds
@JDesaules

[Jean-Yves Desaules @JDesaules]

The latest version of our work is now published in Science Advances https://t.co/J1jhiYGB3z. Be sure to check it out, as it contains new experimental results where we control oscillations due to scarring using different disorder realisations.

[Quantum Many-Body Physics @ Leeds @theoryleeds]

In our upcoming @ScienceAdvances paper https://t.co/d0F2Y9pIpD 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.

[Quantum Many-Body Physics @ Leeds @theoryleeds]

In our upcoming @ScienceAdvances paper https://t.co/d0F2Y9pIpD 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.

[Jean-Yves Desaules @JDesaules]

@QuSysTCD @theoryleeds Thanks!