Kudos’ Post

I am very excited to share that my manuscript "Nanoscale spin ordering and spin screening effects in tunnel ferromagnetic Josephson junctions" has been published in Communication Materials: https://lnkd.in/dbxhhBSy.

📜📣 New paper on arXiv: https://lnkd.in/dSq42vGw Check out our new preprint! In this theoretical work, we show how the complex out-of-equilibrium dynamics of strongly correlated fermions in an optical cavity after a quench across the density-wave ordering phase transition can be dramatically simplified by linearizing the atomic dynamics at early times. This theoretical approach is already used in our recent experimental work to predict the growth rates of DW order following a quench, showing very good qualitative agreement. Furthermore, we investigate the instability seed mechanism. We find that quantum fluctuations of the cavity vacuum and atomic density dominate in different regimes, paving the way for more exciting experimental research in the future.

I'm pleased to announce that I've uploaded a first-author paper onto arXiv! It's a perspective on oversights and issues in how heralded single photon sources are characterised in the literature. If you're interested, then give it a read. A big thank you to my primary PhD supervisor, Imad Faruque, for his fantastic assistance! Here's the abstract... The development of ideal sources is a fundamental challenge for the practical implementation of integrated photonic technologies for quantum applications. In this paper we analyse the state-of-the-art in heralded single photon sources; pointing out inconsistencies in the how key parameters, such as brightness and heralding efficiency, are characterised. We then suggest considerations that could be made to facilitate fairer comparison between literature results. https://lnkd.in/g2RNW6Rn

When physicists started building colliders in the 1940s, they did not have a complete inventory of elementary particles, and they knew it. New measurements brought up new puzzles, and they built bigger colliders until, in 2012, the picture was complete. The Standard Model still has some loose ends, but experimentally testing those would require energies at least ten billion times higher than what even the FCC could test. The scientific case for the next larger collider is therefore presently slim. But there is no reason why the particles that make up dark matter or dark energy should show up in the new device’s energy range. And that is assuming they are particles to begin with, for which there is no evidence. Even if they are particles, moreover, highly energetic collisions may not be the best way to look for them. Weakly interacting particles with tiny masses, for example, are not something one looks for with large colliders. And there are entirely different types of experiments that could lead to breakthroughs at far smaller costs, such as high-precision measurements at low energies or increasing the masses of objects in #quantum states. Going to higher energies is not the only way to make progress in the foundations of physics; it’s just the most expensive one.

#mdpiUniverse #NewPaper #CallforReading   📣 Learn more about the physics of Core-Collapse #Supernovae in this newly published paper in Universe MDPI   👥 Authors: Dr. Luca Boccioli and Dr. Lorenzo Roberti 👉 Full text: https://lnkd.in/dctCc7z2

I am excited to announce that we have published our second paper as a preprint on arXiv, titled "Gravitational wavefunctions in JT supergravity" (https://lnkd.in/erXaTDqY ). This work focuses on solvable lower-dimensional models of quantum gravity, with a particular emphasis on JT supergravity. In this paper, we leverage the group theoretic framework developed in our previous paper to describe the gravitational wavefunctions of JT supergravity as constrained representation matrices of this supergroup. This approach reveals the underlying structure governing the supergravity model.

Our latest research paper, led by Florian Kappe, on the quantum control of dark excitons in quantum dots for potential time-bin entanglement. Preprint is now on ArXiv .👇 https://lnkd.in/dKCSQQdS Abstract: Because dark excitons in quantum dots are not directly optically accessible, so far they have not played a significant role in using quantum dots for photon generation. They possess significantly longer lifetimes than their brighter counterparts and hence offer enormous potential for photon storage or manipulation. In this work, we demonstrate an all-optical storage and retrieval of the spin-forbidden dark exciton in a quantum dot from the ground state employing chirped pulses and an in-plane magnetic field. Our experimental findings are in excellent agreement with theoretical predictions of the dynamics calculated using state-of-the-art product tensor methods. Our scheme enables an all-optical control of dark states without relying on any preceding decays. This opens up a new dimension for optimal quantum control and time-bin entangled photon pair generation from quantum dots.

Excited to share the latest Topical Issue “India and the Large Hadron Collider” of "The European Physical Journal Special Topics" dedicated to India's contribution to this groundbreaking scientific endeavor! This is a must-read for anyone interested in particle physics, the Large Hadron Collider, or the role of India in cutting-edge scientific research. I encourage you to explore the full issue here: Volume 232, Issue 17.

📘 New Book Release: 200 Years of Thermoelectricity Excited to share the launch of the new #Springer book "200 Years of Thermoelectricity: An Historical Journey Through the Science and Technology of Thermoelectric Materials (1821-2021)"—a deep dive into the history and evolution of thermoelectric science and materials. This book covers the major breakthroughs in the field of thermoelectricity, from Seebeck and Peltier’s discoveries to cutting-edge materials like quantum dots and nanostructures. It’s packed with translated historic papers, expert annotations, and a fascinating look at how this field has shaped modern tech. A huge thank you to the editors for their incredible work: Lukyan Anatychuk(†), Alexander Burkov, Julian Goldsmid, Yuri Grin, Kunihito Koumoto, Dario Narducci, and George S. Nolas. Their dedication made this important book possible! For anyone interested in energy materials, physics, or just the incredible history behind thermoelectricity, this book is a must-read. Get your copy here: https://lnkd.in/ejZjP-nW #Thermoelectricity #MaterialsScience #HistoryofScience #EnergyTech #ThermoelectricMaterials

📢 Excited to announce a new publication on arXiv (2402.10918v1) presenting a groundbreaking approach to recovering the fragmentation rate in the growth-fragmentation equation. This research tackles the inverse problem of determining fragmentation rate from noisy measurements using Fourier transform theory on locally compact groups. The post introduces a regularization method based on spectral filtering, enabling the handling of the inverse problem in weighted L^2 spaces. Check out the full article for insights into this innovative approach: https://bit.ly/3OPeVML